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Finding the Fourth Proportional to 359,578.60, 539,756.70 and 202,114.60

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Solution

The fourth proportional to 359,578.60, 539,756.70 and 202,114.60 is: 303,390.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,578.60 : 539,756.70 = 202,114.60 : x
  2. Step 2: Convert to fraction form
    359,578.60/539,756.70 = 202,114.60/x
  3. Step 3: Cross multiply
    359,578.60x = 539,756.70 × 202,114.60
  4. Step 4: Simplify right side
    359,578.60x = 109,092,709,517.82
  5. Step 5: Solve for x
    x = 109,092,709,517.82/359,578.60
  6. Step 6: Final answer
    x = 303,390.44

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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.