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Finding the Fourth Proportional to 587,418.30, 880,143.30 and 502,781.40

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Solution

The fourth proportional to 587,418.30, 880,143.30 and 502,781.40 is: 753,329.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,418.30 : 880,143.30 = 502,781.40 : x
  2. Step 2: Convert to fraction form
    587,418.30/880,143.30 = 502,781.40/x
  3. Step 3: Cross multiply
    587,418.30x = 880,143.30 × 502,781.40
  4. Step 4: Simplify right side
    587,418.30x = 442,519,680,574.62
  5. Step 5: Solve for x
    x = 442,519,680,574.62/587,418.30
  6. Step 6: Final answer
    x = 753,329.75

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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.