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Finding the Fourth Proportional to 521,967.41, 720,365.57 and 292,563.66

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Solution

The fourth proportional to 521,967.41, 720,365.57 and 292,563.66 is: 403,766.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,967.41 : 720,365.57 = 292,563.66 : x
  2. Step 2: Convert to fraction form
    521,967.41/720,365.57 = 292,563.66/x
  3. Step 3: Cross multiply
    521,967.41x = 720,365.57 × 292,563.66
  4. Step 4: Simplify right side
    521,967.41x = 210,752,786,234.37
  5. Step 5: Solve for x
    x = 210,752,786,234.37/521,967.41
  6. Step 6: Final answer
    x = 403,766.18

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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.