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Finding the Fourth Proportional to 312,000.95, 430,524.29 and 176,026.97

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Solution

The fourth proportional to 312,000.95, 430,524.29 and 176,026.97 is: 242,896.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,000.95 : 430,524.29 = 176,026.97 : x
  2. Step 2: Convert to fraction form
    312,000.95/430,524.29 = 176,026.97/x
  3. Step 3: Cross multiply
    312,000.95x = 430,524.29 × 176,026.97
  4. Step 4: Simplify right side
    312,000.95x = 75,783,887,796.48
  5. Step 5: Solve for x
    x = 75,783,887,796.48/312,000.95
  6. Step 6: Final answer
    x = 242,896.33

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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.