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Finding the Fourth Proportional to 633,548.64, 873,965.52 and 391,753.92

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Solution

The fourth proportional to 633,548.64, 873,965.52 and 391,753.92 is: 540,415.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,548.64 : 873,965.52 = 391,753.92 : x
  2. Step 2: Convert to fraction form
    633,548.64/873,965.52 = 391,753.92/x
  3. Step 3: Cross multiply
    633,548.64x = 873,965.52 × 391,753.92
  4. Step 4: Simplify right side
    633,548.64x = 342,379,418,404.84
  5. Step 5: Solve for x
    x = 342,379,418,404.84/633,548.64
  6. Step 6: Final answer
    x = 540,415.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.