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Finding the Fourth Proportional to 372,244.62, 513,648.90 and 211,040.76

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Solution

The fourth proportional to 372,244.62, 513,648.90 and 211,040.76 is: 291,208.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,244.62 : 513,648.90 = 211,040.76 : x
  2. Step 2: Convert to fraction form
    372,244.62/513,648.90 = 211,040.76/x
  3. Step 3: Cross multiply
    372,244.62x = 513,648.90 × 211,040.76
  4. Step 4: Simplify right side
    372,244.62x = 108,400,854,229.16
  5. Step 5: Solve for x
    x = 108,400,854,229.16/372,244.62
  6. Step 6: Final answer
    x = 291,208.65

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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.