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Finding the Fourth Proportional to 215,061.39, 322,548.80 and 204,391.58

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Solution

The fourth proportional to 215,061.39, 322,548.80 and 204,391.58 is: 306,546.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,061.39 : 322,548.80 = 204,391.58 : x
  2. Step 2: Convert to fraction form
    215,061.39/322,548.80 = 204,391.58/x
  3. Step 3: Cross multiply
    215,061.39x = 322,548.80 × 204,391.58
  4. Step 4: Simplify right side
    215,061.39x = 65,926,256,224.40
  5. Step 5: Solve for x
    x = 65,926,256,224.40/215,061.39
  6. Step 6: Final answer
    x = 306,546.22

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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.