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Finding the Fourth Proportional to 589,387.32, 813,452.76 and 347,729.76

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Solution

The fourth proportional to 589,387.32, 813,452.76 and 347,729.76 is: 479,925.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,387.32 : 813,452.76 = 347,729.76 : x
  2. Step 2: Convert to fraction form
    589,387.32/813,452.76 = 347,729.76/x
  3. Step 3: Cross multiply
    589,387.32x = 813,452.76 × 347,729.76
  4. Step 4: Simplify right side
    589,387.32x = 282,861,733,006.14
  5. Step 5: Solve for x
    x = 282,861,733,006.14/589,387.32
  6. Step 6: Final answer
    x = 479,925.04

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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.