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Finding the Fourth Proportional to 359,274.96, 495,792.90 and 198,144.90

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Solution

The fourth proportional to 359,274.96, 495,792.90 and 198,144.90 is: 273,436.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,274.96 : 495,792.90 = 198,144.90 : x
  2. Step 2: Convert to fraction form
    359,274.96/495,792.90 = 198,144.90/x
  3. Step 3: Cross multiply
    359,274.96x = 495,792.90 × 198,144.90
  4. Step 4: Simplify right side
    359,274.96x = 98,238,834,591.21
  5. Step 5: Solve for x
    x = 98,238,834,591.21/359,274.96
  6. Step 6: Final answer
    x = 273,436.35

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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.