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Finding the Fourth Proportional to 401,698.68, 554,393.34 and 231,932.52

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Solution

The fourth proportional to 401,698.68, 554,393.34 and 231,932.52 is: 320,095.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,698.68 : 554,393.34 = 231,932.52 : x
  2. Step 2: Convert to fraction form
    401,698.68/554,393.34 = 231,932.52/x
  3. Step 3: Cross multiply
    401,698.68x = 554,393.34 × 231,932.52
  4. Step 4: Simplify right side
    401,698.68x = 128,581,844,417.42
  5. Step 5: Solve for x
    x = 128,581,844,417.42/401,698.68
  6. Step 6: Final answer
    x = 320,095.26

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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.