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Finding the Fourth Proportional to 401,967.36, 554,812.80 and 240,917.76

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Solution

The fourth proportional to 401,967.36, 554,812.80 and 240,917.76 is: 332,525.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,967.36 : 554,812.80 = 240,917.76 : x
  2. Step 2: Convert to fraction form
    401,967.36/554,812.80 = 240,917.76/x
  3. Step 3: Cross multiply
    401,967.36x = 554,812.80 × 240,917.76
  4. Step 4: Simplify right side
    401,967.36x = 133,664,256,995.33
  5. Step 5: Solve for x
    x = 133,664,256,995.33/401,967.36
  6. Step 6: Final answer
    x = 332,525.15

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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.