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Finding the Fourth Proportional to 359,646.60, 496,311.84 and 198,501.96

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Solution

The fourth proportional to 359,646.60, 496,311.84 and 198,501.96 is: 273,932.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,646.60 : 496,311.84 = 198,501.96 : x
  2. Step 2: Convert to fraction form
    359,646.60/496,311.84 = 198,501.96/x
  3. Step 3: Cross multiply
    359,646.60x = 496,311.84 × 198,501.96
  4. Step 4: Simplify right side
    359,646.60x = 98,518,873,011.21
  5. Step 5: Solve for x
    x = 98,518,873,011.21/359,646.60
  6. Step 6: Final answer
    x = 273,932.45

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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.