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Finding the Fourth Proportional to 512,067.99, 706,348.98 and 330,886.38

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Solution

The fourth proportional to 512,067.99, 706,348.98 and 330,886.38 is: 456,426.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,067.99 : 706,348.98 = 330,886.38 : x
  2. Step 2: Convert to fraction form
    512,067.99/706,348.98 = 330,886.38/x
  3. Step 3: Cross multiply
    512,067.99x = 706,348.98 × 330,886.38
  4. Step 4: Simplify right side
    512,067.99x = 233,721,257,008.89
  5. Step 5: Solve for x
    x = 233,721,257,008.89/512,067.99
  6. Step 6: Final answer
    x = 456,426.22

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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.