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Finding the Fourth Proportional to 369,560.31, 509,809.88 and 238,692.97

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Solution

The fourth proportional to 369,560.31, 509,809.88 and 238,692.97 is: 329,277.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,560.31 : 509,809.88 = 238,692.97 : x
  2. Step 2: Convert to fraction form
    369,560.31/509,809.88 = 238,692.97/x
  3. Step 3: Cross multiply
    369,560.31x = 509,809.88 × 238,692.97
  4. Step 4: Simplify right side
    369,560.31x = 121,688,031,843.49
  5. Step 5: Solve for x
    x = 121,688,031,843.49/369,560.31
  6. Step 6: Final answer
    x = 329,277.87

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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.