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Finding the Fourth Proportional to 423,936.60, 635,904.90 and 366,855.90

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Solution

The fourth proportional to 423,936.60, 635,904.90 and 366,855.90 is: 550,283.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,936.60 : 635,904.90 = 366,855.90 : x
  2. Step 2: Convert to fraction form
    423,936.60/635,904.90 = 366,855.90/x
  3. Step 3: Cross multiply
    423,936.60x = 635,904.90 × 366,855.90
  4. Step 4: Simplify right side
    423,936.60x = 233,285,464,403.91
  5. Step 5: Solve for x
    x = 233,285,464,403.91/423,936.60
  6. Step 6: Final answer
    x = 550,283.85

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.