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Finding the Fourth Proportional to 362,387.90, 500,102.05 and 201,257.94

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Solution

The fourth proportional to 362,387.90, 500,102.05 and 201,257.94 is: 277,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,387.90 : 500,102.05 = 201,257.94 : x
  2. Step 2: Convert to fraction form
    362,387.90/500,102.05 = 201,257.94/x
  3. Step 3: Cross multiply
    362,387.90x = 500,102.05 × 201,257.94
  4. Step 4: Simplify right side
    362,387.90x = 100,649,508,372.78
  5. Step 5: Solve for x
    x = 100,649,508,372.78/362,387.90
  6. Step 6: Final answer
    x = 277,739.70

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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.