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Finding the Fourth Proportional to 300,776.88, 415,056.20 and 171,710.24

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Solution

The fourth proportional to 300,776.88, 415,056.20 and 171,710.24 is: 236,951.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,776.88 : 415,056.20 = 171,710.24 : x
  2. Step 2: Convert to fraction form
    300,776.88/415,056.20 = 171,710.24/x
  3. Step 3: Cross multiply
    300,776.88x = 415,056.20 × 171,710.24
  4. Step 4: Simplify right side
    300,776.88x = 71,269,399,715.49
  5. Step 5: Solve for x
    x = 71,269,399,715.49/300,776.88
  6. Step 6: Final answer
    x = 236,951.06

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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.