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Finding the Fourth Proportional to 647,184.06, 970,805.22 and 247,721.22

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Solution

The fourth proportional to 647,184.06, 970,805.22 and 247,721.22 is: 371,592.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,184.06 : 970,805.22 = 247,721.22 : x
  2. Step 2: Convert to fraction form
    647,184.06/970,805.22 = 247,721.22/x
  3. Step 3: Cross multiply
    647,184.06x = 970,805.22 × 247,721.22
  4. Step 4: Simplify right side
    647,184.06x = 240,489,053,480.77
  5. Step 5: Solve for x
    x = 240,489,053,480.77/647,184.06
  6. Step 6: Final answer
    x = 371,592.98

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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.