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Finding the Fourth Proportional to 235,839.06, 325,660.16 and 228,213.11

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Solution

The fourth proportional to 235,839.06, 325,660.16 and 228,213.11 is: 315,129.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,839.06 : 325,660.16 = 228,213.11 : x
  2. Step 2: Convert to fraction form
    235,839.06/325,660.16 = 228,213.11/x
  3. Step 3: Cross multiply
    235,839.06x = 325,660.16 × 228,213.11
  4. Step 4: Simplify right side
    235,839.06x = 74,319,919,301.38
  5. Step 5: Solve for x
    x = 74,319,919,301.38/235,839.06
  6. Step 6: Final answer
    x = 315,129.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.