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Finding the Fourth Proportional to 329,968.64, 455,356.71 and 179,065.64

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Solution

The fourth proportional to 329,968.64, 455,356.71 and 179,065.64 is: 247,110.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,968.64 : 455,356.71 = 179,065.64 : x
  2. Step 2: Convert to fraction form
    329,968.64/455,356.71 = 179,065.64/x
  3. Step 3: Cross multiply
    329,968.64x = 455,356.71 × 179,065.64
  4. Step 4: Simplify right side
    329,968.64x = 81,538,740,704.44
  5. Step 5: Solve for x
    x = 81,538,740,704.44/329,968.64
  6. Step 6: Final answer
    x = 247,110.58

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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.