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Finding the Fourth Proportional to 582,991.56, 872,512.20 and 358,494.18

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Solution

The fourth proportional to 582,991.56, 872,512.20 and 358,494.18 is: 536,526.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,991.56 : 872,512.20 = 358,494.18 : x
  2. Step 2: Convert to fraction form
    582,991.56/872,512.20 = 358,494.18/x
  3. Step 3: Cross multiply
    582,991.56x = 872,512.20 × 358,494.18
  4. Step 4: Simplify right side
    582,991.56x = 312,790,545,679.00
  5. Step 5: Solve for x
    x = 312,790,545,679.00/582,991.56
  6. Step 6: Final answer
    x = 536,526.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.