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Finding the Fourth Proportional to 359,115.50, 495,576.13 and 197,970.55

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Solution

The fourth proportional to 359,115.50, 495,576.13 and 197,970.55 is: 273,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,115.50 : 495,576.13 = 197,970.55 : x
  2. Step 2: Convert to fraction form
    359,115.50/495,576.13 = 197,970.55/x
  3. Step 3: Cross multiply
    359,115.50x = 495,576.13 × 197,970.55
  4. Step 4: Simplify right side
    359,115.50x = 98,109,479,022.97
  5. Step 5: Solve for x
    x = 98,109,479,022.97/359,115.50
  6. Step 6: Final answer
    x = 273,197.56

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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.