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Finding the Fourth Proportional to 408,068.10, 571,761.90 and 408,068.10

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Solution

The fourth proportional to 408,068.10, 571,761.90 and 408,068.10 is: 571,761.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,068.10 : 571,761.90 = 408,068.10 : x
  2. Step 2: Convert to fraction form
    408,068.10/571,761.90 = 408,068.10/x
  3. Step 3: Cross multiply
    408,068.10x = 571,761.90 × 408,068.10
  4. Step 4: Simplify right side
    408,068.10x = 233,317,792,185.39
  5. Step 5: Solve for x
    x = 233,317,792,185.39/408,068.10
  6. Step 6: Final answer
    x = 571,761.90

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.