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Finding the Fourth Proportional to 485,135.10, 727,702.65 and 482,024.70

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Solution

The fourth proportional to 485,135.10, 727,702.65 and 482,024.70 is: 723,037.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,135.10 : 727,702.65 = 482,024.70 : x
  2. Step 2: Convert to fraction form
    485,135.10/727,702.65 = 482,024.70/x
  3. Step 3: Cross multiply
    485,135.10x = 727,702.65 × 482,024.70
  4. Step 4: Simplify right side
    485,135.10x = 350,770,651,555.46
  5. Step 5: Solve for x
    x = 350,770,651,555.46/485,135.10
  6. Step 6: Final answer
    x = 723,037.05

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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.