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Finding the Fourth Proportional to 702,371.73, 969,275.54 and 380,081.79

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Solution

The fourth proportional to 702,371.73, 969,275.54 and 380,081.79 is: 524,514.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,371.73 : 969,275.54 = 380,081.79 : x
  2. Step 2: Convert to fraction form
    702,371.73/969,275.54 = 380,081.79/x
  3. Step 3: Cross multiply
    702,371.73x = 969,275.54 × 380,081.79
  4. Step 4: Simplify right side
    702,371.73x = 368,403,982,246.42
  5. Step 5: Solve for x
    x = 368,403,982,246.42/702,371.73
  6. Step 6: Final answer
    x = 524,514.25

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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.