Home / 905,152.88-1,248,972.12-523,105.88

Finding the Fourth Proportional to 905,152.88, 1,248,972.12 and 523,105.88

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Solution

The fourth proportional to 905,152.88, 1,248,972.12 and 523,105.88 is: 721,805.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,152.88 : 1,248,972.12 = 523,105.88 : x
  2. Step 2: Convert to fraction form
    905,152.88/1,248,972.12 = 523,105.88/x
  3. Step 3: Cross multiply
    905,152.88x = 1,248,972.12 × 523,105.88
  4. Step 4: Simplify right side
    905,152.88x = 653,344,659,928.07
  5. Step 5: Solve for x
    x = 653,344,659,928.07/905,152.88
  6. Step 6: Final answer
    x = 721,805.87

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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.