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Finding the Fourth Proportional to 359,146.38, 495,629.51 and 198,008.22

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Solution

The fourth proportional to 359,146.38, 495,629.51 and 198,008.22 is: 273,255.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,146.38 : 495,629.51 = 198,008.22 : x
  2. Step 2: Convert to fraction form
    359,146.38/495,629.51 = 198,008.22/x
  3. Step 3: Cross multiply
    359,146.38x = 495,629.51 × 198,008.22
  4. Step 4: Simplify right side
    359,146.38x = 98,138,716,064.53
  5. Step 5: Solve for x
    x = 98,138,716,064.53/359,146.38
  6. Step 6: Final answer
    x = 273,255.48

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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.