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Finding the Fourth Proportional to 359,139.30, 495,615.69 and 198,000.60

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Solution

The fourth proportional to 359,139.30, 495,615.69 and 198,000.60 is: 273,242.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,139.30 : 495,615.69 = 198,000.60 : x
  2. Step 2: Convert to fraction form
    359,139.30/495,615.69 = 198,000.60/x
  3. Step 3: Cross multiply
    359,139.30x = 495,615.69 × 198,000.60
  4. Step 4: Simplify right side
    359,139.30x = 98,132,203,989.41
  5. Step 5: Solve for x
    x = 98,132,203,989.41/359,139.30
  6. Step 6: Final answer
    x = 273,242.73

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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.