Home / 459,043.12-688,545.78-159,591.52

Finding the Fourth Proportional to 459,043.12, 688,545.78 and 159,591.52

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Solution

The fourth proportional to 459,043.12, 688,545.78 and 159,591.52 is: 239,380.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,043.12 : 688,545.78 = 159,591.52 : x
  2. Step 2: Convert to fraction form
    459,043.12/688,545.78 = 159,591.52/x
  3. Step 3: Cross multiply
    459,043.12x = 688,545.78 × 159,591.52
  4. Step 4: Simplify right side
    459,043.12x = 109,886,067,619.79
  5. Step 5: Solve for x
    x = 109,886,067,619.79/459,043.12
  6. Step 6: Final answer
    x = 239,380.71

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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.