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Finding the Fourth Proportional to 441,057.60, 660,856.80 and 253,742.40

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Solution

The fourth proportional to 441,057.60, 660,856.80 and 253,742.40 is: 380,193.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,057.60 : 660,856.80 = 253,742.40 : x
  2. Step 2: Convert to fraction form
    441,057.60/660,856.80 = 253,742.40/x
  3. Step 3: Cross multiply
    441,057.60x = 660,856.80 × 253,742.40
  4. Step 4: Simplify right side
    441,057.60x = 167,687,390,488.32
  5. Step 5: Solve for x
    x = 167,687,390,488.32/441,057.60
  6. Step 6: Final answer
    x = 380,193.86

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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.