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Finding the Fourth Proportional to 767,700.90, 1,151,698.95 and 294,349.34

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Solution

The fourth proportional to 767,700.90, 1,151,698.95 and 294,349.34 is: 441,580.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,700.90 : 1,151,698.95 = 294,349.34 : x
  2. Step 2: Convert to fraction form
    767,700.90/1,151,698.95 = 294,349.34/x
  3. Step 3: Cross multiply
    767,700.90x = 1,151,698.95 × 294,349.34
  4. Step 4: Simplify right side
    767,700.90x = 339,001,824,339.45
  5. Step 5: Solve for x
    x = 339,001,824,339.45/767,700.90
  6. Step 6: Final answer
    x = 441,580.60

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.