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Finding the Fourth Proportional to 534,785.91, 737,983.40 and 319,797.87

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Solution

The fourth proportional to 534,785.91, 737,983.40 and 319,797.87 is: 441,308.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,785.91 : 737,983.40 = 319,797.87 : x
  2. Step 2: Convert to fraction form
    534,785.91/737,983.40 = 319,797.87/x
  3. Step 3: Cross multiply
    534,785.91x = 737,983.40 × 319,797.87
  4. Step 4: Simplify right side
    534,785.91x = 236,005,519,415.36
  5. Step 5: Solve for x
    x = 236,005,519,415.36/534,785.91
  6. Step 6: Final answer
    x = 441,308.41

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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.