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Finding the Fourth Proportional to 577,916.70, 866,967.66 and 178,463.58

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Solution

The fourth proportional to 577,916.70, 866,967.66 and 178,463.58 is: 267,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,916.70 : 866,967.66 = 178,463.58 : x
  2. Step 2: Convert to fraction form
    577,916.70/866,967.66 = 178,463.58/x
  3. Step 3: Cross multiply
    577,916.70x = 866,967.66 × 178,463.58
  4. Step 4: Simplify right side
    577,916.70x = 154,722,152,347.82
  5. Step 5: Solve for x
    x = 154,722,152,347.82/577,916.70
  6. Step 6: Final answer
    x = 267,723.97

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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.