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Finding the Fourth Proportional to 626,206.97, 864,165.94 and 339,726.98

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Solution

The fourth proportional to 626,206.97, 864,165.94 and 339,726.98 is: 468,823.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,206.97 : 864,165.94 = 339,726.98 : x
  2. Step 2: Convert to fraction form
    626,206.97/864,165.94 = 339,726.98/x
  3. Step 3: Cross multiply
    626,206.97x = 864,165.94 × 339,726.98
  4. Step 4: Simplify right side
    626,206.97x = 293,580,486,326.16
  5. Step 5: Solve for x
    x = 293,580,486,326.16/626,206.97
  6. Step 6: Final answer
    x = 468,823.41

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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.