Home / 986,418.40-1,361,257.28-533,709.44

Finding the Fourth Proportional to 986,418.40, 1,361,257.28 and 533,709.44

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Solution

The fourth proportional to 986,418.40, 1,361,257.28 and 533,709.44 is: 736,518.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,418.40 : 1,361,257.28 = 533,709.44 : x
  2. Step 2: Convert to fraction form
    986,418.40/1,361,257.28 = 533,709.44/x
  3. Step 3: Cross multiply
    986,418.40x = 1,361,257.28 × 533,709.44
  4. Step 4: Simplify right side
    986,418.40x = 726,515,860,604.72
  5. Step 5: Solve for x
    x = 726,515,860,604.72/986,418.40
  6. Step 6: Final answer
    x = 736,518.97

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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.