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Finding the Fourth Proportional to 294,330.60, 441,495.90 and 272,679.30

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Solution

The fourth proportional to 294,330.60, 441,495.90 and 272,679.30 is: 409,018.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,330.60 : 441,495.90 = 272,679.30 : x
  2. Step 2: Convert to fraction form
    294,330.60/441,495.90 = 272,679.30/x
  3. Step 3: Cross multiply
    294,330.60x = 441,495.90 × 272,679.30
  4. Step 4: Simplify right side
    294,330.60x = 120,386,792,964.87
  5. Step 5: Solve for x
    x = 120,386,792,964.87/294,330.60
  6. Step 6: Final answer
    x = 409,018.95

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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.