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Finding the Fourth Proportional to 566,321.08, 781,347.18 and 321,265.60

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Solution

The fourth proportional to 566,321.08, 781,347.18 and 321,265.60 is: 443,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,321.08 : 781,347.18 = 321,265.60 : x
  2. Step 2: Convert to fraction form
    566,321.08/781,347.18 = 321,265.60/x
  3. Step 3: Cross multiply
    566,321.08x = 781,347.18 × 321,265.60
  4. Step 4: Simplify right side
    566,321.08x = 251,019,970,591.01
  5. Step 5: Solve for x
    x = 251,019,970,591.01/566,321.08
  6. Step 6: Final answer
    x = 443,246.74

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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.