Home / 905,157.88-1,248,979.02-523,110.88

Finding the Fourth Proportional to 905,157.88, 1,248,979.02 and 523,110.88

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Solution

The fourth proportional to 905,157.88, 1,248,979.02 and 523,110.88 is: 721,812.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,157.88 : 1,248,979.02 = 523,110.88 : x
  2. Step 2: Convert to fraction form
    905,157.88/1,248,979.02 = 523,110.88/x
  3. Step 3: Cross multiply
    905,157.88x = 1,248,979.02 × 523,110.88
  4. Step 4: Simplify right side
    905,157.88x = 653,354,514,253.74
  5. Step 5: Solve for x
    x = 653,354,514,253.74/905,157.88
  6. Step 6: Final answer
    x = 721,812.77

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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.