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Finding the Fourth Proportional to 616,614.20, 924,921.30 and 447,340.40

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Solution

The fourth proportional to 616,614.20, 924,921.30 and 447,340.40 is: 671,010.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,614.20 : 924,921.30 = 447,340.40 : x
  2. Step 2: Convert to fraction form
    616,614.20/924,921.30 = 447,340.40/x
  3. Step 3: Cross multiply
    616,614.20x = 924,921.30 × 447,340.40
  4. Step 4: Simplify right side
    616,614.20x = 413,754,664,310.52
  5. Step 5: Solve for x
    x = 413,754,664,310.52/616,614.20
  6. Step 6: Final answer
    x = 671,010.60

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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.