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Finding the Fourth Proportional to 636,939.33, 878,982.89 and 365,001.27

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Solution

The fourth proportional to 636,939.33, 878,982.89 and 365,001.27 is: 503,705.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,939.33 : 878,982.89 = 365,001.27 : x
  2. Step 2: Convert to fraction form
    636,939.33/878,982.89 = 365,001.27/x
  3. Step 3: Cross multiply
    636,939.33x = 878,982.89 × 365,001.27
  4. Step 4: Simplify right side
    636,939.33x = 320,829,869,333.26
  5. Step 5: Solve for x
    x = 320,829,869,333.26/636,939.33
  6. Step 6: Final answer
    x = 503,705.54

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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.