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Finding the Fourth Proportional to 647,934.30, 971,555.85 and 273,534.30

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Solution

The fourth proportional to 647,934.30, 971,555.85 and 273,534.30 is: 410,155.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,934.30 : 971,555.85 = 273,534.30 : x
  2. Step 2: Convert to fraction form
    647,934.30/971,555.85 = 273,534.30/x
  3. Step 3: Cross multiply
    647,934.30x = 971,555.85 × 273,534.30
  4. Step 4: Simplify right side
    647,934.30x = 265,753,849,340.66
  5. Step 5: Solve for x
    x = 265,753,849,340.66/647,934.30
  6. Step 6: Final answer
    x = 410,155.55

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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.