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Finding the Fourth Proportional to 359,814.30, 496,551.48 and 198,679.58

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Solution

The fourth proportional to 359,814.30, 496,551.48 and 198,679.58 is: 274,182.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,814.30 : 496,551.48 = 198,679.58 : x
  2. Step 2: Convert to fraction form
    359,814.30/496,551.48 = 198,679.58/x
  3. Step 3: Cross multiply
    359,814.30x = 496,551.48 × 198,679.58
  4. Step 4: Simplify right side
    359,814.30x = 98,654,639,494.78
  5. Step 5: Solve for x
    x = 98,654,639,494.78/359,814.30
  6. Step 6: Final answer
    x = 274,182.10

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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.