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Finding the Fourth Proportional to 647,540.30, 971,310.45 and 436,033.10

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Solution

The fourth proportional to 647,540.30, 971,310.45 and 436,033.10 is: 654,049.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,540.30 : 971,310.45 = 436,033.10 : x
  2. Step 2: Convert to fraction form
    647,540.30/971,310.45 = 436,033.10/x
  3. Step 3: Cross multiply
    647,540.30x = 971,310.45 × 436,033.10
  4. Step 4: Simplify right side
    647,540.30x = 423,523,506,575.90
  5. Step 5: Solve for x
    x = 423,523,506,575.90/647,540.30
  6. Step 6: Final answer
    x = 654,049.65

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Similar ratio
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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.