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Finding the Fourth Proportional to 326,349.32, 489,404.38 and 113,062.15

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Solution

The fourth proportional to 326,349.32, 489,404.38 and 113,062.15 is: 169,551.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,349.32 : 489,404.38 = 113,062.15 : x
  2. Step 2: Convert to fraction form
    326,349.32/489,404.38 = 113,062.15/x
  3. Step 3: Cross multiply
    326,349.32x = 489,404.38 × 113,062.15
  4. Step 4: Simplify right side
    326,349.32x = 55,333,110,446.03
  5. Step 5: Solve for x
    x = 55,333,110,446.03/326,349.32
  6. Step 6: Final answer
    x = 169,551.79

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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.