Home / 743,649.56-1,026,231.51-404,117.78

Finding the Fourth Proportional to 743,649.56, 1,026,231.51 and 404,117.78

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Solution

The fourth proportional to 743,649.56, 1,026,231.51 and 404,117.78 is: 557,679.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,649.56 : 1,026,231.51 = 404,117.78 : x
  2. Step 2: Convert to fraction form
    743,649.56/1,026,231.51 = 404,117.78/x
  3. Step 3: Cross multiply
    743,649.56x = 1,026,231.51 × 404,117.78
  4. Step 4: Simplify right side
    743,649.56x = 414,718,399,587.25
  5. Step 5: Solve for x
    x = 414,718,399,587.25/743,649.56
  6. Step 6: Final answer
    x = 557,679.88

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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.