Home / 724,370.10-1,086,555.15-191,973.30

Finding the Fourth Proportional to 724,370.10, 1,086,555.15 and 191,973.30

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Solution

The fourth proportional to 724,370.10, 1,086,555.15 and 191,973.30 is: 287,959.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,370.10 : 1,086,555.15 = 191,973.30 : x
  2. Step 2: Convert to fraction form
    724,370.10/1,086,555.15 = 191,973.30/x
  3. Step 3: Cross multiply
    724,370.10x = 1,086,555.15 × 191,973.30
  4. Step 4: Simplify right side
    724,370.10x = 208,589,577,777.50
  5. Step 5: Solve for x
    x = 208,589,577,777.50/724,370.10
  6. Step 6: Final answer
    x = 287,959.95

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Double scale
Find fourth proportional to 724,371.10, 1,086,556.65 and 191,974.30
Similar ratio
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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.