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Finding the Fourth Proportional to 359,708.79, 496,395.34 and 198,563.79

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Solution

The fourth proportional to 359,708.79, 496,395.34 and 198,563.79 is: 274,016.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,708.79 : 496,395.34 = 198,563.79 : x
  2. Step 2: Convert to fraction form
    359,708.79/496,395.34 = 198,563.79/x
  3. Step 3: Cross multiply
    359,708.79x = 496,395.34 × 198,563.79
  4. Step 4: Simplify right side
    359,708.79x = 98,566,140,048.74
  5. Step 5: Solve for x
    x = 98,566,140,048.74/359,708.79
  6. Step 6: Final answer
    x = 274,016.49

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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.