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Finding the Fourth Proportional to 613,778.68, 846,988.14 and 443,717.56

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Solution

The fourth proportional to 613,778.68, 846,988.14 and 443,717.56 is: 612,311.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,778.68 : 846,988.14 = 443,717.56 : x
  2. Step 2: Convert to fraction form
    613,778.68/846,988.14 = 443,717.56/x
  3. Step 3: Cross multiply
    613,778.68x = 846,988.14 × 443,717.56
  4. Step 4: Simplify right side
    613,778.68x = 375,823,510,829.74
  5. Step 5: Solve for x
    x = 375,823,510,829.74/613,778.68
  6. Step 6: Final answer
    x = 612,311.12

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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.