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Finding the Fourth Proportional to 326,372.74, 489,448.24 and 113,090.88

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Solution

The fourth proportional to 326,372.74, 489,448.24 and 113,090.88 is: 169,597.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,372.74 : 489,448.24 = 113,090.88 : x
  2. Step 2: Convert to fraction form
    326,372.74/489,448.24 = 113,090.88/x
  3. Step 3: Cross multiply
    326,372.74x = 489,448.24 × 113,090.88
  4. Step 4: Simplify right side
    326,372.74x = 55,352,133,728.75
  5. Step 5: Solve for x
    x = 55,352,133,728.75/326,372.74
  6. Step 6: Final answer
    x = 169,597.91

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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.