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Finding the Fourth Proportional to 408,993.09, 564,264.38 and 236,817.08

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Solution

The fourth proportional to 408,993.09, 564,264.38 and 236,817.08 is: 326,722.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,993.09 : 564,264.38 = 236,817.08 : x
  2. Step 2: Convert to fraction form
    408,993.09/564,264.38 = 236,817.08/x
  3. Step 3: Cross multiply
    408,993.09x = 564,264.38 × 236,817.08
  4. Step 4: Simplify right side
    408,993.09x = 133,627,442,819.61
  5. Step 5: Solve for x
    x = 133,627,442,819.61/408,993.09
  6. Step 6: Final answer
    x = 326,722.98

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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.