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Finding the Fourth Proportional to 487,294.20, 730,941.30 and 468,631.80

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Solution

The fourth proportional to 487,294.20, 730,941.30 and 468,631.80 is: 702,947.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,294.20 : 730,941.30 = 468,631.80 : x
  2. Step 2: Convert to fraction form
    487,294.20/730,941.30 = 468,631.80/x
  3. Step 3: Cross multiply
    487,294.20x = 730,941.30 × 468,631.80
  4. Step 4: Simplify right side
    487,294.20x = 342,542,337,113.34
  5. Step 5: Solve for x
    x = 342,542,337,113.34/487,294.20
  6. Step 6: Final answer
    x = 702,947.70

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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.