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Finding the Fourth Proportional to 294,479.40, 441,719.10 and 274,650.60

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Solution

The fourth proportional to 294,479.40, 441,719.10 and 274,650.60 is: 411,975.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,479.40 : 441,719.10 = 274,650.60 : x
  2. Step 2: Convert to fraction form
    294,479.40/441,719.10 = 274,650.60/x
  3. Step 3: Cross multiply
    294,479.40x = 441,719.10 × 274,650.60
  4. Step 4: Simplify right side
    294,479.40x = 121,318,415,846.46
  5. Step 5: Solve for x
    x = 121,318,415,846.46/294,479.40
  6. Step 6: Final answer
    x = 411,975.90

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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.