Home / 515,290.11-772,923.55-178,310.43

Finding the Fourth Proportional to 515,290.11, 772,923.55 and 178,310.43

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Solution

The fourth proportional to 515,290.11, 772,923.55 and 178,310.43 is: 267,461.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,290.11 : 772,923.55 = 178,310.43 : x
  2. Step 2: Convert to fraction form
    515,290.11/772,923.55 = 178,310.43/x
  3. Step 3: Cross multiply
    515,290.11x = 772,923.55 × 178,310.43
  4. Step 4: Simplify right side
    515,290.11x = 137,820,331,895.41
  5. Step 5: Solve for x
    x = 137,820,331,895.41/515,290.11
  6. Step 6: Final answer
    x = 267,461.63

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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.