Home / 521,942.13-782,913.19-127,958.13

Finding the Fourth Proportional to 521,942.13, 782,913.19 and 127,958.13

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Solution

The fourth proportional to 521,942.13, 782,913.19 and 127,958.13 is: 191,937.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,942.13 : 782,913.19 = 127,958.13 : x
  2. Step 2: Convert to fraction form
    521,942.13/782,913.19 = 127,958.13/x
  3. Step 3: Cross multiply
    521,942.13x = 782,913.19 × 127,958.13
  4. Step 4: Simplify right side
    521,942.13x = 100,180,107,744.74
  5. Step 5: Solve for x
    x = 100,180,107,744.74/521,942.13
  6. Step 6: Final answer
    x = 191,937.19

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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.