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Finding the Fourth Proportional to 372,691.37, 514,320.32 and 211,551.37

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Solution

The fourth proportional to 372,691.37, 514,320.32 and 211,551.37 is: 291,944.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,691.37 : 514,320.32 = 211,551.37 : x
  2. Step 2: Convert to fraction form
    372,691.37/514,320.32 = 211,551.37/x
  3. Step 3: Cross multiply
    372,691.37x = 514,320.32 × 211,551.37
  4. Step 4: Simplify right side
    372,691.37x = 108,805,164,685.48
  5. Step 5: Solve for x
    x = 108,805,164,685.48/372,691.37
  6. Step 6: Final answer
    x = 291,944.42

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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.