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Finding the Fourth Proportional to 274,332.79, 411,277.74 and 252,189.42

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Solution

The fourth proportional to 274,332.79, 411,277.74 and 252,189.42 is: 378,080.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,332.79 : 411,277.74 = 252,189.42 : x
  2. Step 2: Convert to fraction form
    274,332.79/411,277.74 = 252,189.42/x
  3. Step 3: Cross multiply
    274,332.79x = 411,277.74 × 252,189.42
  4. Step 4: Simplify right side
    274,332.79x = 103,719,894,709.51
  5. Step 5: Solve for x
    x = 103,719,894,709.51/274,332.79
  6. Step 6: Final answer
    x = 378,080.56

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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.