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Finding the Fourth Proportional to 586,009.89, 878,432.88 and 332,766.21

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Solution

The fourth proportional to 586,009.89, 878,432.88 and 332,766.21 is: 498,818.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,009.89 : 878,432.88 = 332,766.21 : x
  2. Step 2: Convert to fraction form
    586,009.89/878,432.88 = 332,766.21/x
  3. Step 3: Cross multiply
    586,009.89x = 878,432.88 × 332,766.21
  4. Step 4: Simplify right side
    586,009.89x = 292,312,780,216.99
  5. Step 5: Solve for x
    x = 292,312,780,216.99/586,009.89
  6. Step 6: Final answer
    x = 498,818.85

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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.