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Finding the Fourth Proportional to 950,627.41, 1,311,375.14 and 644,600.23

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Solution

The fourth proportional to 950,627.41, 1,311,375.14 and 644,600.23 is: 889,215.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    950,627.41 : 1,311,375.14 = 644,600.23 : x
  2. Step 2: Convert to fraction form
    950,627.41/1,311,375.14 = 644,600.23/x
  3. Step 3: Cross multiply
    950,627.41x = 1,311,375.14 × 644,600.23
  4. Step 4: Simplify right side
    950,627.41x = 845,312,716,860.28
  5. Step 5: Solve for x
    x = 845,312,716,860.28/950,627.41
  6. Step 6: Final answer
    x = 889,215.59

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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.