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Finding the Fourth Proportional to 324,095.40, 486,288.90 and 113,884.20

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Solution

The fourth proportional to 324,095.40, 486,288.90 and 113,884.20 is: 170,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,095.40 : 486,288.90 = 113,884.20 : x
  2. Step 2: Convert to fraction form
    324,095.40/486,288.90 = 113,884.20/x
  3. Step 3: Cross multiply
    324,095.40x = 486,288.90 × 113,884.20
  4. Step 4: Simplify right side
    324,095.40x = 55,380,622,345.38
  5. Step 5: Solve for x
    x = 55,380,622,345.38/324,095.40
  6. Step 6: Final answer
    x = 170,877.53

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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.