Home / 811,012.77-1,119,152.43-448,414.83

Finding the Fourth Proportional to 811,012.77, 1,119,152.43 and 448,414.83

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Solution

The fourth proportional to 811,012.77, 1,119,152.43 and 448,414.83 is: 618,787.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,012.77 : 1,119,152.43 = 448,414.83 : x
  2. Step 2: Convert to fraction form
    811,012.77/1,119,152.43 = 448,414.83/x
  3. Step 3: Cross multiply
    811,012.77x = 1,119,152.43 × 448,414.83
  4. Step 4: Simplify right side
    811,012.77x = 501,844,546,642.54
  5. Step 5: Solve for x
    x = 501,844,546,642.54/811,012.77
  6. Step 6: Final answer
    x = 618,787.48

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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.