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Finding the Fourth Proportional to 626,206.22, 864,164.90 and 339,726.23

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Solution

The fourth proportional to 626,206.22, 864,164.90 and 339,726.23 is: 468,822.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,206.22 : 864,164.90 = 339,726.23 : x
  2. Step 2: Convert to fraction form
    626,206.22/864,164.90 = 339,726.23/x
  3. Step 3: Cross multiply
    626,206.22x = 864,164.90 × 339,726.23
  4. Step 4: Simplify right side
    626,206.22x = 293,579,488,205.36
  5. Step 5: Solve for x
    x = 293,579,488,205.36/626,206.22
  6. Step 6: Final answer
    x = 468,822.37

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1.5x scale

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.