Home / 579,743.30-869,658.15-205,717.70

Finding the Fourth Proportional to 579,743.30, 869,658.15 and 205,717.70

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Solution

The fourth proportional to 579,743.30, 869,658.15 and 205,717.70 is: 308,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,743.30 : 869,658.15 = 205,717.70 : x
  2. Step 2: Convert to fraction form
    579,743.30/869,658.15 = 205,717.70/x
  3. Step 3: Cross multiply
    579,743.30x = 869,658.15 × 205,717.70
  4. Step 4: Simplify right side
    579,743.30x = 178,904,074,404.26
  5. Step 5: Solve for x
    x = 178,904,074,404.26/579,743.30
  6. Step 6: Final answer
    x = 308,591.88

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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.