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Finding the Fourth Proportional to 492,363.52, 679,462.14 and 266,009.20

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Solution

The fourth proportional to 492,363.52, 679,462.14 and 266,009.20 is: 367,092.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,363.52 : 679,462.14 = 266,009.20 : x
  2. Step 2: Convert to fraction form
    492,363.52/679,462.14 = 266,009.20/x
  3. Step 3: Cross multiply
    492,363.52x = 679,462.14 × 266,009.20
  4. Step 4: Simplify right side
    492,363.52x = 180,743,180,291.69
  5. Step 5: Solve for x
    x = 180,743,180,291.69/492,363.52
  6. Step 6: Final answer
    x = 367,092.96

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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.