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Finding the Fourth Proportional to 438,523.57, 657,785.37 and 106,099.57

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Solution

The fourth proportional to 438,523.57, 657,785.37 and 106,099.57 is: 159,149.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,523.57 : 657,785.37 = 106,099.57 : x
  2. Step 2: Convert to fraction form
    438,523.57/657,785.37 = 106,099.57/x
  3. Step 3: Cross multiply
    438,523.57x = 657,785.37 × 106,099.57
  4. Step 4: Simplify right side
    438,523.57x = 69,790,741,620.36
  5. Step 5: Solve for x
    x = 69,790,741,620.36/438,523.57
  6. Step 6: Final answer
    x = 159,149.35

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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.