Home / 911,391.25-1,257,713.94-503,519.39

Finding the Fourth Proportional to 911,391.25, 1,257,713.94 and 503,519.39

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Solution

The fourth proportional to 911,391.25, 1,257,713.94 and 503,519.39 is: 694,853.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,391.25 : 1,257,713.94 = 503,519.39 : x
  2. Step 2: Convert to fraction form
    911,391.25/1,257,713.94 = 503,519.39/x
  3. Step 3: Cross multiply
    911,391.25x = 1,257,713.94 × 503,519.39
  4. Step 4: Simplify right side
    911,391.25x = 633,283,360,895.78
  5. Step 5: Solve for x
    x = 633,283,360,895.78/911,391.25
  6. Step 6: Final answer
    x = 694,853.46

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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.