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Finding the Fourth Proportional to 307,439.60, 460,940.70 and 117,826.70

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Solution

The fourth proportional to 307,439.60, 460,940.70 and 117,826.70 is: 176,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,439.60 : 460,940.70 = 117,826.70 : x
  2. Step 2: Convert to fraction form
    307,439.60/460,940.70 = 117,826.70/x
  3. Step 3: Cross multiply
    307,439.60x = 460,940.70 × 117,826.70
  4. Step 4: Simplify right side
    307,439.60x = 54,311,121,576.69
  5. Step 5: Solve for x
    x = 54,311,121,576.69/307,439.60
  6. Step 6: Final answer
    x = 176,656.23

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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.