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Finding the Fourth Proportional to 588,877.87, 812,651.61 and 320,605.87

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Solution

The fourth proportional to 588,877.87, 812,651.61 and 320,605.87 is: 442,436.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    588,877.87 : 812,651.61 = 320,605.87 : x
  2. Step 2: Convert to fraction form
    588,877.87/812,651.61 = 320,605.87/x
  3. Step 3: Cross multiply
    588,877.87x = 812,651.61 × 320,605.87
  4. Step 4: Simplify right side
    588,877.87x = 260,540,876,430.95
  5. Step 5: Solve for x
    x = 260,540,876,430.95/588,877.87
  6. Step 6: Final answer
    x = 442,436.18

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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.