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Finding the Fourth Proportional to 374,285.89, 561,279.39 and 216,625.06

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Solution

The fourth proportional to 374,285.89, 561,279.39 and 216,625.06 is: 324,851.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,285.89 : 561,279.39 = 216,625.06 : x
  2. Step 2: Convert to fraction form
    374,285.89/561,279.39 = 216,625.06/x
  3. Step 3: Cross multiply
    374,285.89x = 561,279.39 × 216,625.06
  4. Step 4: Simplify right side
    374,285.89x = 121,587,181,535.51
  5. Step 5: Solve for x
    x = 121,587,181,535.51/374,285.89
  6. Step 6: Final answer
    x = 324,851.10

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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.