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Finding the Fourth Proportional to 359,422.40, 496,001.48 and 198,287.48

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Solution

The fourth proportional to 359,422.40, 496,001.48 and 198,287.48 is: 273,635.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,422.40 : 496,001.48 = 198,287.48 : x
  2. Step 2: Convert to fraction form
    359,422.40/496,001.48 = 198,287.48/x
  3. Step 3: Cross multiply
    359,422.40x = 496,001.48 × 198,287.48
  4. Step 4: Simplify right side
    359,422.40x = 98,350,883,545.47
  5. Step 5: Solve for x
    x = 98,350,883,545.47/359,422.40
  6. Step 6: Final answer
    x = 273,635.93

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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.