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Finding the Fourth Proportional to 613,777.68, 846,986.76 and 443,716.56

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Solution

The fourth proportional to 613,777.68, 846,986.76 and 443,716.56 is: 612,309.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,777.68 : 846,986.76 = 443,716.56 : x
  2. Step 2: Convert to fraction form
    613,777.68/846,986.76 = 443,716.56/x
  3. Step 3: Cross multiply
    613,777.68x = 846,986.76 × 443,716.56
  4. Step 4: Simplify right side
    613,777.68x = 375,822,051,512.75
  5. Step 5: Solve for x
    x = 375,822,051,512.75/613,777.68
  6. Step 6: Final answer
    x = 612,309.74

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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.