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Finding the Fourth Proportional to 492,712.62, 679,945.15 and 266,358.14

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Solution

The fourth proportional to 492,712.62, 679,945.15 and 266,358.14 is: 367,575.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,712.62 : 679,945.15 = 266,358.14 : x
  2. Step 2: Convert to fraction form
    492,712.62/679,945.15 = 266,358.14/x
  3. Step 3: Cross multiply
    492,712.62x = 679,945.15 × 266,358.14
  4. Step 4: Simplify right side
    492,712.62x = 181,108,925,456.02
  5. Step 5: Solve for x
    x = 181,108,925,456.02/492,712.62
  6. Step 6: Final answer
    x = 367,575.17

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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.