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Finding the Fourth Proportional to 415,152, 622,766.88 and 134,593.92

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Solution

The fourth proportional to 415,152, 622,766.88 and 134,593.92 is: 201,903.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,152 : 622,766.88 = 134,593.92 : x
  2. Step 2: Convert to fraction form
    415,152/622,766.88 = 134,593.92/x
  3. Step 3: Cross multiply
    415,152x = 622,766.88 × 134,593.92
  4. Step 4: Simplify right side
    415,152x = 83,820,635,625.37
  5. Step 5: Solve for x
    x = 83,820,635,625.37/415,152
  6. Step 6: Final answer
    x = 201,903.49

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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.