Home / 426,337.17-639,568.94-141,934.83

Finding the Fourth Proportional to 426,337.17, 639,568.94 and 141,934.83

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Solution

The fourth proportional to 426,337.17, 639,568.94 and 141,934.83 is: 212,923.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,337.17 : 639,568.94 = 141,934.83 : x
  2. Step 2: Convert to fraction form
    426,337.17/639,568.94 = 141,934.83/x
  3. Step 3: Cross multiply
    426,337.17x = 639,568.94 × 141,934.83
  4. Step 4: Simplify right side
    426,337.17x = 90,777,108,062.51
  5. Step 5: Solve for x
    x = 90,777,108,062.51/426,337.17
  6. Step 6: Final answer
    x = 212,923.28

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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.