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Finding the Fourth Proportional to 359,892.60, 540,227.70 and 202,428.60

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Solution

The fourth proportional to 359,892.60, 540,227.70 and 202,428.60 is: 303,861.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,892.60 : 540,227.70 = 202,428.60 : x
  2. Step 2: Convert to fraction form
    359,892.60/540,227.70 = 202,428.60/x
  3. Step 3: Cross multiply
    359,892.60x = 540,227.70 × 202,428.60
  4. Step 4: Simplify right side
    359,892.60x = 109,357,536,992.22
  5. Step 5: Solve for x
    x = 109,357,536,992.22/359,892.60
  6. Step 6: Final answer
    x = 303,861.59

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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.