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Finding the Fourth Proportional to 667,024.49, 920,492.65 and 361,100.75

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Solution

The fourth proportional to 667,024.49, 920,492.65 and 361,100.75 is: 498,318.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,024.49 : 920,492.65 = 361,100.75 : x
  2. Step 2: Convert to fraction form
    667,024.49/920,492.65 = 361,100.75/x
  3. Step 3: Cross multiply
    667,024.49x = 920,492.65 × 361,100.75
  4. Step 4: Simplify right side
    667,024.49x = 332,390,586,284.49
  5. Step 5: Solve for x
    x = 332,390,586,284.49/667,024.49
  6. Step 6: Final answer
    x = 498,318.42

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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.