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Finding the Fourth Proportional to 548,588.76, 757,115.28 and 306,932.56

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Solution

The fourth proportional to 548,588.76, 757,115.28 and 306,932.56 is: 423,602.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,588.76 : 757,115.28 = 306,932.56 : x
  2. Step 2: Convert to fraction form
    548,588.76/757,115.28 = 306,932.56/x
  3. Step 3: Cross multiply
    548,588.76x = 757,115.28 × 306,932.56
  4. Step 4: Simplify right side
    548,588.76x = 232,383,331,105.52
  5. Step 5: Solve for x
    x = 232,383,331,105.52/548,588.76
  6. Step 6: Final answer
    x = 423,602.06

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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.