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Finding the Fourth Proportional to 932,489.74, 1,285,597.10 and 609,644.80

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Solution

The fourth proportional to 932,489.74, 1,285,597.10 and 609,644.80 is: 840,499.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,489.74 : 1,285,597.10 = 609,644.80 : x
  2. Step 2: Convert to fraction form
    932,489.74/1,285,597.10 = 609,644.80/x
  3. Step 3: Cross multiply
    932,489.74x = 1,285,597.10 × 609,644.80
  4. Step 4: Simplify right side
    932,489.74x = 783,757,577,433.87
  5. Step 5: Solve for x
    x = 783,757,577,433.87/932,489.74
  6. Step 6: Final answer
    x = 840,499.95

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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.