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Finding the Fourth Proportional to 611,807.48, 844,295.22 and 339,867.98

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Solution

The fourth proportional to 611,807.48, 844,295.22 and 339,867.98 is: 469,018.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,807.48 : 844,295.22 = 339,867.98 : x
  2. Step 2: Convert to fraction form
    611,807.48/844,295.22 = 339,867.98/x
  3. Step 3: Cross multiply
    611,807.48x = 844,295.22 × 339,867.98
  4. Step 4: Simplify right side
    611,807.48x = 286,948,906,723.58
  5. Step 5: Solve for x
    x = 286,948,906,723.58/611,807.48
  6. Step 6: Final answer
    x = 469,018.31

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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.