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Finding the Fourth Proportional to 539,005.23, 808,518.78 and 361,858.23

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Solution

The fourth proportional to 539,005.23, 808,518.78 and 361,858.23 is: 542,794.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,005.23 : 808,518.78 = 361,858.23 : x
  2. Step 2: Convert to fraction form
    539,005.23/808,518.78 = 361,858.23/x
  3. Step 3: Cross multiply
    539,005.23x = 808,518.78 × 361,858.23
  4. Step 4: Simplify right side
    539,005.23x = 292,569,174,652.56
  5. Step 5: Solve for x
    x = 292,569,174,652.56/539,005.23
  6. Step 6: Final answer
    x = 542,794.69

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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.