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Finding the Fourth Proportional to 626,205.44, 864,163.80 and 339,725.46

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Solution

The fourth proportional to 626,205.44, 864,163.80 and 339,725.46 is: 468,821.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,205.44 : 864,163.80 = 339,725.46 : x
  2. Step 2: Convert to fraction form
    626,205.44/864,163.80 = 339,725.46/x
  3. Step 3: Cross multiply
    626,205.44x = 864,163.80 × 339,725.46
  4. Step 4: Simplify right side
    626,205.44x = 293,578,444,470.35
  5. Step 5: Solve for x
    x = 293,578,444,470.35/626,205.44
  6. Step 6: Final answer
    x = 468,821.29

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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.