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Finding the Fourth Proportional to 612,081.29, 844,605.09 and 353,919.17

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Solution

The fourth proportional to 612,081.29, 844,605.09 and 353,919.17 is: 488,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,081.29 : 844,605.09 = 353,919.17 : x
  2. Step 2: Convert to fraction form
    612,081.29/844,605.09 = 353,919.17/x
  3. Step 3: Cross multiply
    612,081.29x = 844,605.09 × 353,919.17
  4. Step 4: Simplify right side
    612,081.29x = 298,921,928,207.55
  5. Step 5: Solve for x
    x = 298,921,928,207.55/612,081.29
  6. Step 6: Final answer
    x = 488,369.66

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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.