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Finding the Fourth Proportional to 372,434.54, 513,917.88 and 219,462.80

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Solution

The fourth proportional to 372,434.54, 513,917.88 and 219,462.80 is: 302,834.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,434.54 : 513,917.88 = 219,462.80 : x
  2. Step 2: Convert to fraction form
    372,434.54/513,917.88 = 219,462.80/x
  3. Step 3: Cross multiply
    372,434.54x = 513,917.88 × 219,462.80
  4. Step 4: Simplify right side
    372,434.54x = 112,785,856,914.86
  5. Step 5: Solve for x
    x = 112,785,856,914.86/372,434.54
  6. Step 6: Final answer
    x = 302,834.04

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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.