Home / 805,160.70-1,111,109.31-442,576.80

Finding the Fourth Proportional to 805,160.70, 1,111,109.31 and 442,576.80

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Solution

The fourth proportional to 805,160.70, 1,111,109.31 and 442,576.80 is: 610,749.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,160.70 : 1,111,109.31 = 442,576.80 : x
  2. Step 2: Convert to fraction form
    805,160.70/1,111,109.31 = 442,576.80/x
  3. Step 3: Cross multiply
    805,160.70x = 1,111,109.31 × 442,576.80
  4. Step 4: Simplify right side
    805,160.70x = 491,751,202,870.01
  5. Step 5: Solve for x
    x = 491,751,202,870.01/805,160.70
  6. Step 6: Final answer
    x = 610,749.14

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Double scale
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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.