Home / 1,206,887.40-1,810,331.10-647,015.40

Finding the Fourth Proportional to 1,206,887.40, 1,810,331.10 and 647,015.40

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Solution

The fourth proportional to 1,206,887.40, 1,810,331.10 and 647,015.40 is: 970,523.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,887.40 : 1,810,331.10 = 647,015.40 : x
  2. Step 2: Convert to fraction form
    1,206,887.40/1,810,331.10 = 647,015.40/x
  3. Step 3: Cross multiply
    1,206,887.40x = 1,810,331.10 × 647,015.40
  4. Step 4: Simplify right side
    1,206,887.40x = 1,171,312,100,798.94
  5. Step 5: Solve for x
    x = 1,171,312,100,798.94/1,206,887.40
  6. Step 6: Final answer
    x = 970,523.10

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Double scale
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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.