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Finding the Fourth Proportional to 359,087.45, 495,543.96 and 197,948.21

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Solution

The fourth proportional to 359,087.45, 495,543.96 and 197,948.21 is: 273,170.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,087.45 : 495,543.96 = 197,948.21 : x
  2. Step 2: Convert to fraction form
    359,087.45/495,543.96 = 197,948.21/x
  3. Step 3: Cross multiply
    359,087.45x = 495,543.96 × 197,948.21
  4. Step 4: Simplify right side
    359,087.45x = 98,092,037,380.59
  5. Step 5: Solve for x
    x = 98,092,037,380.59/359,087.45
  6. Step 6: Final answer
    x = 273,170.33

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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.