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Finding the Fourth Proportional to 374,080.86, 561,296.25 and 216,441.90

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Solution

The fourth proportional to 374,080.86, 561,296.25 and 216,441.90 is: 324,764.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,080.86 : 561,296.25 = 216,441.90 : x
  2. Step 2: Convert to fraction form
    374,080.86/561,296.25 = 216,441.90/x
  3. Step 3: Cross multiply
    374,080.86x = 561,296.25 × 216,441.90
  4. Step 4: Simplify right side
    374,080.86x = 121,488,026,812.88
  5. Step 5: Solve for x
    x = 121,488,026,812.88/374,080.86
  6. Step 6: Final answer
    x = 324,764.08

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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.