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Finding the Fourth Proportional to 583,570.38, 805,991.43 and 392,251.62

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Solution

The fourth proportional to 583,570.38, 805,991.43 and 392,251.62 is: 541,753.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,570.38 : 805,991.43 = 392,251.62 : x
  2. Step 2: Convert to fraction form
    583,570.38/805,991.43 = 392,251.62/x
  3. Step 3: Cross multiply
    583,570.38x = 805,991.43 × 392,251.62
  4. Step 4: Simplify right side
    583,570.38x = 316,151,447,146.09
  5. Step 5: Solve for x
    x = 316,151,447,146.09/583,570.38
  6. Step 6: Final answer
    x = 541,753.76

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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.