Home / 398,818.13-598,097.79-132,507.14

Finding the Fourth Proportional to 398,818.13, 598,097.79 and 132,507.14

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Solution

The fourth proportional to 398,818.13, 598,097.79 and 132,507.14 is: 198,717.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,818.13 : 598,097.79 = 132,507.14 : x
  2. Step 2: Convert to fraction form
    398,818.13/598,097.79 = 132,507.14/x
  3. Step 3: Cross multiply
    398,818.13x = 598,097.79 × 132,507.14
  4. Step 4: Simplify right side
    398,818.13x = 79,252,224,602.73
  5. Step 5: Solve for x
    x = 79,252,224,602.73/398,818.13
  6. Step 6: Final answer
    x = 198,717.71

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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.