Home / 938,997.46-1,294,527.91-628,778.80

Finding the Fourth Proportional to 938,997.46, 1,294,527.91 and 628,778.80

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Solution

The fourth proportional to 938,997.46, 1,294,527.91 and 628,778.80 is: 866,851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    938,997.46 : 1,294,527.91 = 628,778.80 : x
  2. Step 2: Convert to fraction form
    938,997.46/1,294,527.91 = 628,778.80/x
  3. Step 3: Cross multiply
    938,997.46x = 1,294,527.91 × 628,778.80
  4. Step 4: Simplify right side
    938,997.46x = 813,971,696,199.78
  5. Step 5: Solve for x
    x = 813,971,696,199.78/938,997.46
  6. Step 6: Final answer
    x = 866,851.87

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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.