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Finding the Fourth Proportional to 582,991.43, 872,511.89 and 358,494.03

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Solution

The fourth proportional to 582,991.43, 872,511.89 and 358,494.03 is: 536,526.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,991.43 : 872,511.89 = 358,494.03 : x
  2. Step 2: Convert to fraction form
    582,991.43/872,511.89 = 358,494.03/x
  3. Step 3: Cross multiply
    582,991.43x = 872,511.89 × 358,494.03
  4. Step 4: Simplify right side
    582,991.43x = 312,790,301,876.55
  5. Step 5: Solve for x
    x = 312,790,301,876.55/582,991.43
  6. Step 6: Final answer
    x = 536,526.42

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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.