Home / 398,124.20-596,396.25-187,909.76

Finding the Fourth Proportional to 398,124.20, 596,396.25 and 187,909.76

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Solution

The fourth proportional to 398,124.20, 596,396.25 and 187,909.76 is: 281,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,124.20 : 596,396.25 = 187,909.76 : x
  2. Step 2: Convert to fraction form
    398,124.20/596,396.25 = 187,909.76/x
  3. Step 3: Cross multiply
    398,124.20x = 596,396.25 × 187,909.76
  4. Step 4: Simplify right side
    398,124.20x = 112,068,677,693.39
  5. Step 5: Solve for x
    x = 112,068,677,693.39/398,124.20
  6. Step 6: Final answer
    x = 281,491.75

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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.