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Finding the Fourth Proportional to 260,848.80, 391,856.40 and 250,221.60

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Solution

The fourth proportional to 260,848.80, 391,856.40 and 250,221.60 is: 375,891.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,848.80 : 391,856.40 = 250,221.60 : x
  2. Step 2: Convert to fraction form
    260,848.80/391,856.40 = 250,221.60/x
  3. Step 3: Cross multiply
    260,848.80x = 391,856.40 × 250,221.60
  4. Step 4: Simplify right side
    260,848.80x = 98,050,935,378.24
  5. Step 5: Solve for x
    x = 98,050,935,378.24/260,848.80
  6. Step 6: Final answer
    x = 375,891.84

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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.