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Finding the Fourth Proportional to 636,796.07, 878,785.87 and 364,858.51

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Solution

The fourth proportional to 636,796.07, 878,785.87 and 364,858.51 is: 503,508.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,796.07 : 878,785.87 = 364,858.51 : x
  2. Step 2: Convert to fraction form
    636,796.07/878,785.87 = 364,858.51/x
  3. Step 3: Cross multiply
    636,796.07x = 878,785.87 × 364,858.51
  4. Step 4: Simplify right side
    636,796.07x = 320,632,503,137.25
  5. Step 5: Solve for x
    x = 320,632,503,137.25/636,796.07
  6. Step 6: Final answer
    x = 503,508.92

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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.