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Finding the Fourth Proportional to 571,846.40, 857,186.40 and 335,067.20

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Solution

The fourth proportional to 571,846.40, 857,186.40 and 335,067.20 is: 502,259.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,846.40 : 857,186.40 = 335,067.20 : x
  2. Step 2: Convert to fraction form
    571,846.40/857,186.40 = 335,067.20/x
  3. Step 3: Cross multiply
    571,846.40x = 857,186.40 × 335,067.20
  4. Step 4: Simplify right side
    571,846.40x = 287,215,046,926.08
  5. Step 5: Solve for x
    x = 287,215,046,926.08/571,846.40
  6. Step 6: Final answer
    x = 502,259.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.