Home / 905,150.88-1,248,969.36-523,103.88

Finding the Fourth Proportional to 905,150.88, 1,248,969.36 and 523,103.88

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Solution

The fourth proportional to 905,150.88, 1,248,969.36 and 523,103.88 is: 721,803.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,150.88 : 1,248,969.36 = 523,103.88 : x
  2. Step 2: Convert to fraction form
    905,150.88/1,248,969.36 = 523,103.88/x
  3. Step 3: Cross multiply
    905,150.88x = 1,248,969.36 × 523,103.88
  4. Step 4: Simplify right side
    905,150.88x = 653,340,718,217.12
  5. Step 5: Solve for x
    x = 653,340,718,217.12/905,150.88
  6. Step 6: Final answer
    x = 721,803.11

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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.