Home / 986,604.78-1,361,515.80-533,895.78

Finding the Fourth Proportional to 986,604.78, 1,361,515.80 and 533,895.78

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Solution

The fourth proportional to 986,604.78, 1,361,515.80 and 533,895.78 is: 736,776.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,604.78 : 1,361,515.80 = 533,895.78 : x
  2. Step 2: Convert to fraction form
    986,604.78/1,361,515.80 = 533,895.78/x
  3. Step 3: Cross multiply
    986,604.78x = 1,361,515.80 × 533,895.78
  4. Step 4: Simplify right side
    986,604.78x = 726,907,540,023.32
  5. Step 5: Solve for x
    x = 726,907,540,023.32/986,604.78
  6. Step 6: Final answer
    x = 736,776.83

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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.