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Finding the Fourth Proportional to 359,051.15, 495,481.78 and 197,902.64

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Solution

The fourth proportional to 359,051.15, 495,481.78 and 197,902.64 is: 273,100.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,051.15 : 495,481.78 = 197,902.64 : x
  2. Step 2: Convert to fraction form
    359,051.15/495,481.78 = 197,902.64/x
  3. Step 3: Cross multiply
    359,051.15x = 495,481.78 × 197,902.64
  4. Step 4: Simplify right side
    359,051.15x = 98,057,152,333.90
  5. Step 5: Solve for x
    x = 98,057,152,333.90/359,051.15
  6. Step 6: Final answer
    x = 273,100.79

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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.