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Finding the Fourth Proportional to 492,972.30, 680,301.72 and 266,617.80

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Solution

The fourth proportional to 492,972.30, 680,301.72 and 266,617.80 is: 367,932.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,972.30 : 680,301.72 = 266,617.80 : x
  2. Step 2: Convert to fraction form
    492,972.30/680,301.72 = 266,617.80/x
  3. Step 3: Cross multiply
    492,972.30x = 680,301.72 × 266,617.80
  4. Step 4: Simplify right side
    492,972.30x = 181,380,547,922.62
  5. Step 5: Solve for x
    x = 181,380,547,922.62/492,972.30
  6. Step 6: Final answer
    x = 367,932.53

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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.