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Finding the Fourth Proportional to 626,236.77, 864,198.99 and 339,754.76

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Solution

The fourth proportional to 626,236.77, 864,198.99 and 339,754.76 is: 468,857.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,236.77 : 864,198.99 = 339,754.76 : x
  2. Step 2: Convert to fraction form
    626,236.77/864,198.99 = 339,754.76/x
  3. Step 3: Cross multiply
    626,236.77x = 864,198.99 × 339,754.76
  4. Step 4: Simplify right side
    626,236.77x = 293,615,720,439.69
  5. Step 5: Solve for x
    x = 293,615,720,439.69/626,236.77
  6. Step 6: Final answer
    x = 468,857.36

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Double scale
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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.