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Finding the Fourth Proportional to 582,505.43, 803,855.81 and 327,856.61

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Solution

The fourth proportional to 582,505.43, 803,855.81 and 327,856.61 is: 452,441.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    582,505.43 : 803,855.81 = 327,856.61 : x
  2. Step 2: Convert to fraction form
    582,505.43/803,855.81 = 327,856.61/x
  3. Step 3: Cross multiply
    582,505.43x = 803,855.81 × 327,856.61
  4. Step 4: Simplify right side
    582,505.43x = 263,549,443,624.69
  5. Step 5: Solve for x
    x = 263,549,443,624.69/582,505.43
  6. Step 6: Final answer
    x = 452,441.18

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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.