Home / 718,119.36-990,640.53-548,058.24

Finding the Fourth Proportional to 718,119.36, 990,640.53 and 548,058.24

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Solution

The fourth proportional to 718,119.36, 990,640.53 and 548,058.24 is: 756,042.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,119.36 : 990,640.53 = 548,058.24 : x
  2. Step 2: Convert to fraction form
    718,119.36/990,640.53 = 548,058.24/x
  3. Step 3: Cross multiply
    718,119.36x = 990,640.53 × 548,058.24
  4. Step 4: Simplify right side
    718,119.36x = 542,928,705,344.47
  5. Step 5: Solve for x
    x = 542,928,705,344.47/718,119.36
  6. Step 6: Final answer
    x = 756,042.43

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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.