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Finding the Fourth Proportional to 296,439.20, 409,047.56 and 169,107.20

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Solution

The fourth proportional to 296,439.20, 409,047.56 and 169,107.20 is: 233,345.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,439.20 : 409,047.56 = 169,107.20 : x
  2. Step 2: Convert to fraction form
    296,439.20/409,047.56 = 169,107.20/x
  3. Step 3: Cross multiply
    296,439.20x = 409,047.56 × 169,107.20
  4. Step 4: Simplify right side
    296,439.20x = 69,172,887,538.43
  5. Step 5: Solve for x
    x = 69,172,887,538.43/296,439.20
  6. Step 6: Final answer
    x = 233,345.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.