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Finding the Fourth Proportional to 583,570.70, 805,991.86 and 392,251.94

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Solution

The fourth proportional to 583,570.70, 805,991.86 and 392,251.94 is: 541,754.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    583,570.70 : 805,991.86 = 392,251.94 : x
  2. Step 2: Convert to fraction form
    583,570.70/805,991.86 = 392,251.94/x
  3. Step 3: Cross multiply
    583,570.70x = 805,991.86 × 392,251.94
  4. Step 4: Simplify right side
    583,570.70x = 316,151,866,679.25
  5. Step 5: Solve for x
    x = 316,151,866,679.25/583,570.70
  6. Step 6: Final answer
    x = 541,754.19

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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.