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Finding the Fourth Proportional to 539,003.24, 808,515.79 and 361,856.24

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Solution

The fourth proportional to 539,003.24, 808,515.79 and 361,856.24 is: 542,791.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,003.24 : 808,515.79 = 361,856.24 : x
  2. Step 2: Convert to fraction form
    539,003.24/808,515.79 = 361,856.24/x
  3. Step 3: Cross multiply
    539,003.24x = 808,515.79 × 361,856.24
  4. Step 4: Simplify right side
    539,003.24x = 292,566,483,750.03
  5. Step 5: Solve for x
    x = 292,566,483,750.03/539,003.24
  6. Step 6: Final answer
    x = 542,791.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.