Home / 391,153.32-539,772.72-240,221.16

Finding the Fourth Proportional to 391,153.32, 539,772.72 and 240,221.16

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Solution

The fourth proportional to 391,153.32, 539,772.72 and 240,221.16 is: 331,493.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,153.32 : 539,772.72 = 240,221.16 : x
  2. Step 2: Convert to fraction form
    391,153.32/539,772.72 = 240,221.16/x
  3. Step 3: Cross multiply
    391,153.32x = 539,772.72 × 240,221.16
  4. Step 4: Simplify right side
    391,153.32x = 129,664,828,934.76
  5. Step 5: Solve for x
    x = 129,664,828,934.76/391,153.32
  6. Step 6: Final answer
    x = 331,493.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.