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Finding the Fourth Proportional to 424,206.59, 585,402.64 and 240,479.83

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Solution

The fourth proportional to 424,206.59, 585,402.64 and 240,479.83 is: 331,860.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,206.59 : 585,402.64 = 240,479.83 : x
  2. Step 2: Convert to fraction form
    424,206.59/585,402.64 = 240,479.83/x
  3. Step 3: Cross multiply
    424,206.59x = 585,402.64 × 240,479.83
  4. Step 4: Simplify right side
    424,206.59x = 140,777,526,146.35
  5. Step 5: Solve for x
    x = 140,777,526,146.35/424,206.59
  6. Step 6: Final answer
    x = 331,860.77

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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.