Home / 1,120,386.96-1,546,155-611,107.56

Finding the Fourth Proportional to 1,120,386.96, 1,546,155 and 611,107.56

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Solution

The fourth proportional to 1,120,386.96, 1,546,155 and 611,107.56 is: 843,339.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,386.96 : 1,546,155 = 611,107.56 : x
  2. Step 2: Convert to fraction form
    1,120,386.96/1,546,155 = 611,107.56/x
  3. Step 3: Cross multiply
    1,120,386.96x = 1,546,155 × 611,107.56
  4. Step 4: Simplify right side
    1,120,386.96x = 944,867,009,431.80
  5. Step 5: Solve for x
    x = 944,867,009,431.80/1,120,386.96
  6. Step 6: Final answer
    x = 843,339.88

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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.