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Finding the Fourth Proportional to 626,263, 864,217.74 and 339,772.12

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Solution

The fourth proportional to 626,263, 864,217.74 and 339,772.12 is: 468,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,263 : 864,217.74 = 339,772.12 : x
  2. Step 2: Convert to fraction form
    626,263/864,217.74 = 339,772.12/x
  3. Step 3: Cross multiply
    626,263x = 864,217.74 × 339,772.12
  4. Step 4: Simplify right side
    626,263x = 293,637,093,661.41
  5. Step 5: Solve for x
    x = 293,637,093,661.41/626,263
  6. Step 6: Final answer
    x = 468,871.85

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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.