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Finding the Fourth Proportional to 324,154.20, 486,231.30 and 245,422.20

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Solution

The fourth proportional to 324,154.20, 486,231.30 and 245,422.20 is: 368,133.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,154.20 : 486,231.30 = 245,422.20 : x
  2. Step 2: Convert to fraction form
    324,154.20/486,231.30 = 245,422.20/x
  3. Step 3: Cross multiply
    324,154.20x = 486,231.30 × 245,422.20
  4. Step 4: Simplify right side
    324,154.20x = 119,331,955,354.86
  5. Step 5: Solve for x
    x = 119,331,955,354.86/324,154.20
  6. Step 6: Final answer
    x = 368,133.30

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1.5x scale

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.