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Finding the Fourth Proportional to 1,149,120,384.80, 1,612,850,005.60 and 1,149,120,384.80

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Solution

The fourth proportional to 1,149,120,384.80, 1,612,850,005.60 and 1,149,120,384.80 is: 1,612,850,005.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,120,384.80 : 1,612,850,005.60 = 1,149,120,384.80 : x
  2. Step 2: Convert to fraction form
    1,149,120,384.80/1,612,850,005.60 = 1,149,120,384.80/x
  3. Step 3: Cross multiply
    1,149,120,384.80x = 1,612,850,005.60 × 1,149,120,384.80
  4. Step 4: Simplify right side
    1,149,120,384.80x = 1,853,358,819,059,753,984
  5. Step 5: Solve for x
    x = 1,853,358,819,059,753,984/1,149,120,384.80
  6. Step 6: Final answer
    x = 1,612,850,005.60

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Half scale
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Double scale
Find fourth proportional to 1,149,120,385.80, 1,612,850,007 and 1,149,120,385.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.