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Finding the Fourth Proportional to 582,138.72, 803,350.08 and 327,489.84

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Solution

The fourth proportional to 582,138.72, 803,350.08 and 327,489.84 is: 451,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,138.72 : 803,350.08 = 327,489.84 : x
  2. Step 2: Convert to fraction form
    582,138.72/803,350.08 = 327,489.84/x
  3. Step 3: Cross multiply
    582,138.72x = 803,350.08 × 327,489.84
  4. Step 4: Simplify right side
    582,138.72x = 263,088,989,163.19
  5. Step 5: Solve for x
    x = 263,088,989,163.19/582,138.72
  6. Step 6: Final answer
    x = 451,935.22

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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.