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Finding the Fourth Proportional to 359,991.40, 539,727.90 and 202,268.20

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Solution

The fourth proportional to 359,991.40, 539,727.90 and 202,268.20 is: 303,256.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,991.40 : 539,727.90 = 202,268.20 : x
  2. Step 2: Convert to fraction form
    359,991.40/539,727.90 = 202,268.20/x
  3. Step 3: Cross multiply
    359,991.40x = 539,727.90 × 202,268.20
  4. Step 4: Simplify right side
    359,991.40x = 109,169,790,822.78
  5. Step 5: Solve for x
    x = 109,169,790,822.78/359,991.40
  6. Step 6: Final answer
    x = 303,256.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.