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Finding the Fourth Proportional to 359,679.09, 496,357.17 and 198,534.18

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Solution

The fourth proportional to 359,679.09, 496,357.17 and 198,534.18 is: 273,977.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,679.09 : 496,357.17 = 198,534.18 : x
  2. Step 2: Convert to fraction form
    359,679.09/496,357.17 = 198,534.18/x
  3. Step 3: Cross multiply
    359,679.09x = 496,357.17 × 198,534.18
  4. Step 4: Simplify right side
    359,679.09x = 98,543,861,127.23
  5. Step 5: Solve for x
    x = 98,543,861,127.23/359,679.09
  6. Step 6: Final answer
    x = 273,977.18

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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.