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Finding the Fourth Proportional to 359,248.80, 495,766.80 and 198,109.56

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Solution

The fourth proportional to 359,248.80, 495,766.80 and 198,109.56 is: 273,393.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,248.80 : 495,766.80 = 198,109.56 : x
  2. Step 2: Convert to fraction form
    359,248.80/495,766.80 = 198,109.56/x
  3. Step 3: Cross multiply
    359,248.80x = 495,766.80 × 198,109.56
  4. Step 4: Simplify right side
    359,248.80x = 98,216,142,610.61
  5. Step 5: Solve for x
    x = 98,216,142,610.61/359,248.80
  6. Step 6: Final answer
    x = 273,393.10

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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.