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Finding the Fourth Proportional to 417,122.72, 575,658.86 and 235,836.42

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Solution

The fourth proportional to 417,122.72, 575,658.86 and 235,836.42 is: 325,470.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,122.72 : 575,658.86 = 235,836.42 : x
  2. Step 2: Convert to fraction form
    417,122.72/575,658.86 = 235,836.42/x
  3. Step 3: Cross multiply
    417,122.72x = 575,658.86 × 235,836.42
  4. Step 4: Simplify right side
    417,122.72x = 135,761,324,683.68
  5. Step 5: Solve for x
    x = 135,761,324,683.68/417,122.72
  6. Step 6: Final answer
    x = 325,470.94

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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.