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Finding the Fourth Proportional to 576,912.42, 865,343.52 and 177,593.76

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Solution

The fourth proportional to 576,912.42, 865,343.52 and 177,593.76 is: 266,382.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,912.42 : 865,343.52 = 177,593.76 : x
  2. Step 2: Convert to fraction form
    576,912.42/865,343.52 = 177,593.76/x
  3. Step 3: Cross multiply
    576,912.42x = 865,343.52 × 177,593.76
  4. Step 4: Simplify right side
    576,912.42x = 153,679,609,408.44
  5. Step 5: Solve for x
    x = 153,679,609,408.44/576,912.42
  6. Step 6: Final answer
    x = 266,382.91

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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.