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Finding the Fourth Proportional to 331,916.96, 497,877 and 82,598.96

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Solution

The fourth proportional to 331,916.96, 497,877 and 82,598.96 is: 123,898.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,916.96 : 497,877 = 82,598.96 : x
  2. Step 2: Convert to fraction form
    331,916.96/497,877 = 82,598.96/x
  3. Step 3: Cross multiply
    331,916.96x = 497,877 × 82,598.96
  4. Step 4: Simplify right side
    331,916.96x = 41,124,122,407.92
  5. Step 5: Solve for x
    x = 41,124,122,407.92/331,916.96
  6. Step 6: Final answer
    x = 123,898.83

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1.5x scale

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.