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Finding the Fourth Proportional to 403,441.44, 604,881.12 and 178,679.68

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Solution

The fourth proportional to 403,441.44, 604,881.12 and 178,679.68 is: 267,895.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,441.44 : 604,881.12 = 178,679.68 : x
  2. Step 2: Convert to fraction form
    403,441.44/604,881.12 = 178,679.68/x
  3. Step 3: Cross multiply
    403,441.44x = 604,881.12 × 178,679.68
  4. Step 4: Simplify right side
    403,441.44x = 108,079,964,959.64
  5. Step 5: Solve for x
    x = 108,079,964,959.64/403,441.44
  6. Step 6: Final answer
    x = 267,895.05

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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.