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Finding the Fourth Proportional to 581,912.89, 803,034.53 and 327,258.61

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Solution

The fourth proportional to 581,912.89, 803,034.53 and 327,258.61 is: 451,613.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,912.89 : 803,034.53 = 327,258.61 : x
  2. Step 2: Convert to fraction form
    581,912.89/803,034.53 = 327,258.61/x
  3. Step 3: Cross multiply
    581,912.89x = 803,034.53 × 327,258.61
  4. Step 4: Simplify right side
    581,912.89x = 262,799,964,069.80
  5. Step 5: Solve for x
    x = 262,799,964,069.80/581,912.89
  6. Step 6: Final answer
    x = 451,613.92

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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.