Home / 1,081,403.70-1,622,105.55-521,531.70

Finding the Fourth Proportional to 1,081,403.70, 1,622,105.55 and 521,531.70

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Solution

The fourth proportional to 1,081,403.70, 1,622,105.55 and 521,531.70 is: 782,297.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,403.70 : 1,622,105.55 = 521,531.70 : x
  2. Step 2: Convert to fraction form
    1,081,403.70/1,622,105.55 = 521,531.70/x
  3. Step 3: Cross multiply
    1,081,403.70x = 1,622,105.55 × 521,531.70
  4. Step 4: Simplify right side
    1,081,403.70x = 845,979,465,070.94
  5. Step 5: Solve for x
    x = 845,979,465,070.94/1,081,403.70
  6. Step 6: Final answer
    x = 782,297.55

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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.