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Finding the Fourth Proportional to 359,679.96, 496,358.38 and 198,535.05

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Solution

The fourth proportional to 359,679.96, 496,358.38 and 198,535.05 is: 273,978.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,679.96 : 496,358.38 = 198,535.05 : x
  2. Step 2: Convert to fraction form
    359,679.96/496,358.38 = 198,535.05/x
  3. Step 3: Cross multiply
    359,679.96x = 496,358.38 × 198,535.05
  4. Step 4: Simplify right side
    359,679.96x = 98,544,534,798.54
  5. Step 5: Solve for x
    x = 98,544,534,798.54/359,679.96
  6. Step 6: Final answer
    x = 273,978.39

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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.