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Finding the Fourth Proportional to 329,796.48, 455,117.12 and 178,893.44

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Solution

The fourth proportional to 329,796.48, 455,117.12 and 178,893.44 is: 246,871.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,796.48 : 455,117.12 = 178,893.44 : x
  2. Step 2: Convert to fraction form
    329,796.48/455,117.12 = 178,893.44/x
  3. Step 3: Cross multiply
    329,796.48x = 455,117.12 × 178,893.44
  4. Step 4: Simplify right side
    329,796.48x = 81,417,467,199.69
  5. Step 5: Solve for x
    x = 81,417,467,199.69/329,796.48
  6. Step 6: Final answer
    x = 246,871.85

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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.