Home / 412,340.10-618,510.15-131,885.70

Finding the Fourth Proportional to 412,340.10, 618,510.15 and 131,885.70

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Solution

The fourth proportional to 412,340.10, 618,510.15 and 131,885.70 is: 197,828.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,340.10 : 618,510.15 = 131,885.70 : x
  2. Step 2: Convert to fraction form
    412,340.10/618,510.15 = 131,885.70/x
  3. Step 3: Cross multiply
    412,340.10x = 618,510.15 × 131,885.70
  4. Step 4: Simplify right side
    412,340.10x = 81,572,644,089.86
  5. Step 5: Solve for x
    x = 81,572,644,089.86/412,340.10
  6. Step 6: Final answer
    x = 197,828.55

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Similar ratio
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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.