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Finding the Fourth Proportional to 323,013.56, 445,773.40 and 179,782.79

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Solution

The fourth proportional to 323,013.56, 445,773.40 and 179,782.79 is: 248,108.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,013.56 : 445,773.40 = 179,782.79 : x
  2. Step 2: Convert to fraction form
    323,013.56/445,773.40 = 179,782.79/x
  3. Step 3: Cross multiply
    323,013.56x = 445,773.40 × 179,782.79
  4. Step 4: Simplify right side
    323,013.56x = 80,142,382,881.46
  5. Step 5: Solve for x
    x = 80,142,382,881.46/323,013.56
  6. Step 6: Final answer
    x = 248,108.41

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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.