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Finding the Fourth Proportional to 625,720.04, 938,755.02 and 205,291.16

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Solution

The fourth proportional to 625,720.04, 938,755.02 and 205,291.16 is: 307,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,720.04 : 938,755.02 = 205,291.16 : x
  2. Step 2: Convert to fraction form
    625,720.04/938,755.02 = 205,291.16/x
  3. Step 3: Cross multiply
    625,720.04x = 938,755.02 × 205,291.16
  4. Step 4: Simplify right side
    625,720.04x = 192,718,107,011.62
  5. Step 5: Solve for x
    x = 192,718,107,011.62/625,720.04
  6. Step 6: Final answer
    x = 307,994.14

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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.