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Finding the Fourth Proportional to 578,857.11, 798,921.68 and 337,282.85

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Solution

The fourth proportional to 578,857.11, 798,921.68 and 337,282.85 is: 465,507.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,857.11 : 798,921.68 = 337,282.85 : x
  2. Step 2: Convert to fraction form
    578,857.11/798,921.68 = 337,282.85/x
  3. Step 3: Cross multiply
    578,857.11x = 798,921.68 × 337,282.85
  4. Step 4: Simplify right side
    578,857.11x = 269,462,575,476.17
  5. Step 5: Solve for x
    x = 269,462,575,476.17/578,857.11
  6. Step 6: Final answer
    x = 465,507.93

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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.