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Finding the Fourth Proportional to 577,829.70, 866,836.89 and 178,376.58

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Solution

The fourth proportional to 577,829.70, 866,836.89 and 178,376.58 is: 267,593.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,829.70 : 866,836.89 = 178,376.58 : x
  2. Step 2: Convert to fraction form
    577,829.70/866,836.89 = 178,376.58/x
  3. Step 3: Cross multiply
    577,829.70x = 866,836.89 × 178,376.58
  4. Step 4: Simplify right side
    577,829.70x = 154,623,399,856.04
  5. Step 5: Solve for x
    x = 154,623,399,856.04/577,829.70
  6. Step 6: Final answer
    x = 267,593.38

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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.