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Finding the Fourth Proportional to 305,889.96, 422,178.30 and 176,832.66

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Solution

The fourth proportional to 305,889.96, 422,178.30 and 176,832.66 is: 244,058.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,889.96 : 422,178.30 = 176,832.66 : x
  2. Step 2: Convert to fraction form
    305,889.96/422,178.30 = 176,832.66/x
  3. Step 3: Cross multiply
    305,889.96x = 422,178.30 × 176,832.66
  4. Step 4: Simplify right side
    305,889.96x = 74,654,911,783.28
  5. Step 5: Solve for x
    x = 74,654,911,783.28/305,889.96
  6. Step 6: Final answer
    x = 244,058.07

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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.