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Finding the Fourth Proportional to 1,120,113,000.45, 1,676,940,996.60 and 1,120,113,000.45

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Solution

The fourth proportional to 1,120,113,000.45, 1,676,940,996.60 and 1,120,113,000.45 is: 1,676,940,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,113,000.45 : 1,676,940,996.60 = 1,120,113,000.45 : x
  2. Step 2: Convert to fraction form
    1,120,113,000.45/1,676,940,996.60 = 1,120,113,000.45/x
  3. Step 3: Cross multiply
    1,120,113,000.45x = 1,676,940,996.60 × 1,120,113,000.45
  4. Step 4: Simplify right side
    1,120,113,000.45x = 1,878,363,411,279,239,168
  5. Step 5: Solve for x
    x = 1,878,363,411,279,239,168/1,120,113,000.45
  6. Step 6: Final answer
    x = 1,676,940,996.60

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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.