Home / 571,622.57-857,434.19-145,190.38

Finding the Fourth Proportional to 571,622.57, 857,434.19 and 145,190.38

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Solution

The fourth proportional to 571,622.57, 857,434.19 and 145,190.38 is: 217,785.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,622.57 : 857,434.19 = 145,190.38 : x
  2. Step 2: Convert to fraction form
    571,622.57/857,434.19 = 145,190.38/x
  3. Step 3: Cross multiply
    571,622.57x = 857,434.19 × 145,190.38
  4. Step 4: Simplify right side
    571,622.57x = 124,491,195,871.09
  5. Step 5: Solve for x
    x = 124,491,195,871.09/571,622.57
  6. Step 6: Final answer
    x = 217,785.66

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Similar ratio
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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.