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Finding the Fourth Proportional to 532,939.48, 735,447.56 and 291,216.48

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Solution

The fourth proportional to 532,939.48, 735,447.56 and 291,216.48 is: 401,873.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,939.48 : 735,447.56 = 291,216.48 : x
  2. Step 2: Convert to fraction form
    532,939.48/735,447.56 = 291,216.48/x
  3. Step 3: Cross multiply
    532,939.48x = 735,447.56 × 291,216.48
  4. Step 4: Simplify right side
    532,939.48x = 214,174,449,647.79
  5. Step 5: Solve for x
    x = 214,174,449,647.79/532,939.48
  6. Step 6: Final answer
    x = 401,873.87

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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.