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Finding the Fourth Proportional to 359,278.10, 495,793.99 and 198,130.22

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Solution

The fourth proportional to 359,278.10, 495,793.99 and 198,130.22 is: 273,414.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,278.10 : 495,793.99 = 198,130.22 : x
  2. Step 2: Convert to fraction form
    359,278.10/495,793.99 = 198,130.22/x
  3. Step 3: Cross multiply
    359,278.10x = 495,793.99 × 198,130.22
  4. Step 4: Simplify right side
    359,278.10x = 98,231,772,313.38
  5. Step 5: Solve for x
    x = 98,231,772,313.38/359,278.10
  6. Step 6: Final answer
    x = 273,414.31

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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.