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Finding the Fourth Proportional to 366,117.60, 548,107.20 and 261,141.60

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Solution

The fourth proportional to 366,117.60, 548,107.20 and 261,141.60 is: 390,949.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,117.60 : 548,107.20 = 261,141.60 : x
  2. Step 2: Convert to fraction form
    366,117.60/548,107.20 = 261,141.60/x
  3. Step 3: Cross multiply
    366,117.60x = 548,107.20 × 261,141.60
  4. Step 4: Simplify right side
    366,117.60x = 143,133,591,179.52
  5. Step 5: Solve for x
    x = 143,133,591,179.52/366,117.60
  6. Step 6: Final answer
    x = 390,949.77

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1.5x scale

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.