Home / 905,126.32-1,248,935.61-523,079.38

Finding the Fourth Proportional to 905,126.32, 1,248,935.61 and 523,079.38

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Solution

The fourth proportional to 905,126.32, 1,248,935.61 and 523,079.38 is: 721,769.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,126.32 : 1,248,935.61 = 523,079.38 : x
  2. Step 2: Convert to fraction form
    905,126.32/1,248,935.61 = 523,079.38/x
  3. Step 3: Cross multiply
    905,126.32x = 1,248,935.61 × 523,079.38
  4. Step 4: Simplify right side
    905,126.32x = 653,292,464,538.72
  5. Step 5: Solve for x
    x = 653,292,464,538.72/905,126.32
  6. Step 6: Final answer
    x = 721,769.38

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Double scale
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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.