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Finding the Fourth Proportional to 651,793.64, 899,459.84 and 361,403.78

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Solution

The fourth proportional to 651,793.64, 899,459.84 and 361,403.78 is: 498,728.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,793.64 : 899,459.84 = 361,403.78 : x
  2. Step 2: Convert to fraction form
    651,793.64/899,459.84 = 361,403.78/x
  3. Step 3: Cross multiply
    651,793.64x = 899,459.84 × 361,403.78
  4. Step 4: Simplify right side
    651,793.64x = 325,068,182,540.41
  5. Step 5: Solve for x
    x = 325,068,182,540.41/651,793.64
  6. Step 6: Final answer
    x = 498,728.69

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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.