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Finding the Fourth Proportional to 538,253.62, 741,767.95 and 385,025.69

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Solution

The fourth proportional to 538,253.62, 741,767.95 and 385,025.69 is: 530,604.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,253.62 : 741,767.95 = 385,025.69 : x
  2. Step 2: Convert to fraction form
    538,253.62/741,767.95 = 385,025.69/x
  3. Step 3: Cross multiply
    538,253.62x = 741,767.95 × 385,025.69
  4. Step 4: Simplify right side
    538,253.62x = 285,599,716,768.64
  5. Step 5: Solve for x
    x = 285,599,716,768.64/538,253.62
  6. Step 6: Final answer
    x = 530,604.36

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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.