Home / 661,838.28-913,215.36-444,362.66

Finding the Fourth Proportional to 661,838.28, 913,215.36 and 444,362.66

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Solution

The fourth proportional to 661,838.28, 913,215.36 and 444,362.66 is: 613,138.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,838.28 : 913,215.36 = 444,362.66 : x
  2. Step 2: Convert to fraction form
    661,838.28/913,215.36 = 444,362.66/x
  3. Step 3: Cross multiply
    661,838.28x = 913,215.36 × 444,362.66
  4. Step 4: Simplify right side
    661,838.28x = 405,798,801,956.38
  5. Step 5: Solve for x
    x = 405,798,801,956.38/661,838.28
  6. Step 6: Final answer
    x = 613,138.91

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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.