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Finding the Fourth Proportional to 424,278.02, 636,593.26 and 171,737.04

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Solution

The fourth proportional to 424,278.02, 636,593.26 and 171,737.04 is: 257,676.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,278.02 : 636,593.26 = 171,737.04 : x
  2. Step 2: Convert to fraction form
    424,278.02/636,593.26 = 171,737.04/x
  3. Step 3: Cross multiply
    424,278.02x = 636,593.26 × 171,737.04
  4. Step 4: Simplify right side
    424,278.02x = 109,326,642,156.35
  5. Step 5: Solve for x
    x = 109,326,642,156.35/424,278.02
  6. Step 6: Final answer
    x = 257,676.89

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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.