Home / 639,726.28-959,921.52-260,924.92

Finding the Fourth Proportional to 639,726.28, 959,921.52 and 260,924.92

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Solution

The fourth proportional to 639,726.28, 959,921.52 and 260,924.92 is: 391,522.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,726.28 : 959,921.52 = 260,924.92 : x
  2. Step 2: Convert to fraction form
    639,726.28/959,921.52 = 260,924.92/x
  3. Step 3: Cross multiply
    639,726.28x = 959,921.52 × 260,924.92
  4. Step 4: Simplify right side
    639,726.28x = 250,467,442,434.01
  5. Step 5: Solve for x
    x = 250,467,442,434.01/639,726.28
  6. Step 6: Final answer
    x = 391,522.83

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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.