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Finding the Fourth Proportional to 442,860.62, 610,937.17 and 261,451.02

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Solution

The fourth proportional to 442,860.62, 610,937.17 and 261,451.02 is: 360,678.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,860.62 : 610,937.17 = 261,451.02 : x
  2. Step 2: Convert to fraction form
    442,860.62/610,937.17 = 261,451.02/x
  3. Step 3: Cross multiply
    442,860.62x = 610,937.17 × 261,451.02
  4. Step 4: Simplify right side
    442,860.62x = 159,730,145,598.79
  5. Step 5: Solve for x
    x = 159,730,145,598.79/442,860.62
  6. Step 6: Final answer
    x = 360,678.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.