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Finding the Fourth Proportional to 636,796.58, 878,786.57 and 364,859.01

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Solution

The fourth proportional to 636,796.58, 878,786.57 and 364,859.01 is: 503,509.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,796.58 : 878,786.57 = 364,859.01 : x
  2. Step 2: Convert to fraction form
    636,796.58/878,786.57 = 364,859.01/x
  3. Step 3: Cross multiply
    636,796.58x = 878,786.57 × 364,859.01
  4. Step 4: Simplify right side
    636,796.58x = 320,633,196,107.20
  5. Step 5: Solve for x
    x = 320,633,196,107.20/636,796.58
  6. Step 6: Final answer
    x = 503,509.61

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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.