Home / 521,152.14-781,197.13-221,441.61

Finding the Fourth Proportional to 521,152.14, 781,197.13 and 221,441.61

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Solution

The fourth proportional to 521,152.14, 781,197.13 and 221,441.61 is: 331,936.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,152.14 : 781,197.13 = 221,441.61 : x
  2. Step 2: Convert to fraction form
    521,152.14/781,197.13 = 221,441.61/x
  3. Step 3: Cross multiply
    521,152.14x = 781,197.13 × 221,441.61
  4. Step 4: Simplify right side
    521,152.14x = 172,989,550,194.58
  5. Step 5: Solve for x
    x = 172,989,550,194.58/521,152.14
  6. Step 6: Final answer
    x = 331,936.75

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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.