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Finding the Fourth Proportional to 609,863.20, 914,017.20 and 293,639.20

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Solution

The fourth proportional to 609,863.20, 914,017.20 and 293,639.20 is: 440,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,863.20 : 914,017.20 = 293,639.20 : x
  2. Step 2: Convert to fraction form
    609,863.20/914,017.20 = 293,639.20/x
  3. Step 3: Cross multiply
    609,863.20x = 914,017.20 × 293,639.20
  4. Step 4: Simplify right side
    609,863.20x = 268,391,279,394.24
  5. Step 5: Solve for x
    x = 268,391,279,394.24/609,863.20
  6. Step 6: Final answer
    x = 440,084.40

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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.