Home / 621,127.11-857,150.22-349,196.19

Finding the Fourth Proportional to 621,127.11, 857,150.22 and 349,196.19

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Solution

The fourth proportional to 621,127.11, 857,150.22 and 349,196.19 is: 481,887.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,127.11 : 857,150.22 = 349,196.19 : x
  2. Step 2: Convert to fraction form
    621,127.11/857,150.22 = 349,196.19/x
  3. Step 3: Cross multiply
    621,127.11x = 857,150.22 × 349,196.19
  4. Step 4: Simplify right side
    621,127.11x = 299,313,591,081.66
  5. Step 5: Solve for x
    x = 299,313,591,081.66/621,127.11
  6. Step 6: Final answer
    x = 481,887.82

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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.