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Finding the Fourth Proportional to 532,789.20, 797,871.60 and 251,978.40

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Solution

The fourth proportional to 532,789.20, 797,871.60 and 251,978.40 is: 377,347.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,789.20 : 797,871.60 = 251,978.40 : x
  2. Step 2: Convert to fraction form
    532,789.20/797,871.60 = 251,978.40/x
  3. Step 3: Cross multiply
    532,789.20x = 797,871.60 × 251,978.40
  4. Step 4: Simplify right side
    532,789.20x = 201,046,409,173.44
  5. Step 5: Solve for x
    x = 201,046,409,173.44/532,789.20
  6. Step 6: Final answer
    x = 377,347.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.