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Finding the Fourth Proportional to 324,715.20, 486,842.40 and 124,958.40

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Solution

The fourth proportional to 324,715.20, 486,842.40 and 124,958.40 is: 187,348.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,715.20 : 486,842.40 = 124,958.40 : x
  2. Step 2: Convert to fraction form
    324,715.20/486,842.40 = 124,958.40/x
  3. Step 3: Cross multiply
    324,715.20x = 486,842.40 × 124,958.40
  4. Step 4: Simplify right side
    324,715.20x = 60,835,047,356.16
  5. Step 5: Solve for x
    x = 60,835,047,356.16/324,715.20
  6. Step 6: Final answer
    x = 187,348.94

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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.