Home / 521,247.20-781,777.50-156,434.48

Finding the Fourth Proportional to 521,247.20, 781,777.50 and 156,434.48

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Solution

The fourth proportional to 521,247.20, 781,777.50 and 156,434.48 is: 234,623.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,247.20 : 781,777.50 = 156,434.48 : x
  2. Step 2: Convert to fraction form
    521,247.20/781,777.50 = 156,434.48/x
  3. Step 3: Cross multiply
    521,247.20x = 781,777.50 × 156,434.48
  4. Step 4: Simplify right side
    521,247.20x = 122,296,956,688.20
  5. Step 5: Solve for x
    x = 122,296,956,688.20/521,247.20
  6. Step 6: Final answer
    x = 234,623.72

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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.