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Finding the Fourth Proportional to 327,592.47, 491,391.45 and 90,953.60

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Solution

The fourth proportional to 327,592.47, 491,391.45 and 90,953.60 is: 136,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,592.47 : 491,391.45 = 90,953.60 : x
  2. Step 2: Convert to fraction form
    327,592.47/491,391.45 = 90,953.60/x
  3. Step 3: Cross multiply
    327,592.47x = 491,391.45 × 90,953.60
  4. Step 4: Simplify right side
    327,592.47x = 44,693,818,929.76
  5. Step 5: Solve for x
    x = 44,693,818,929.76/327,592.47
  6. Step 6: Final answer
    x = 136,431.15

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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.