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Finding the Fourth Proportional to 321,175.88, 443,186.80 and 177,900.36

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Solution

The fourth proportional to 321,175.88, 443,186.80 and 177,900.36 is: 245,482.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,175.88 : 443,186.80 = 177,900.36 : x
  2. Step 2: Convert to fraction form
    321,175.88/443,186.80 = 177,900.36/x
  3. Step 3: Cross multiply
    321,175.88x = 443,186.80 × 177,900.36
  4. Step 4: Simplify right side
    321,175.88x = 78,843,091,267.25
  5. Step 5: Solve for x
    x = 78,843,091,267.25/321,175.88
  6. Step 6: Final answer
    x = 245,482.60

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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.