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Finding the Fourth Proportional to 448,276.01, 672,519.15 and 178,420.48

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Solution

The fourth proportional to 448,276.01, 672,519.15 and 178,420.48 is: 267,672.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,276.01 : 672,519.15 = 178,420.48 : x
  2. Step 2: Convert to fraction form
    448,276.01/672,519.15 = 178,420.48/x
  3. Step 3: Cross multiply
    448,276.01x = 672,519.15 × 178,420.48
  4. Step 4: Simplify right side
    448,276.01x = 119,991,185,297.49
  5. Step 5: Solve for x
    x = 119,991,185,297.49/448,276.01
  6. Step 6: Final answer
    x = 267,672.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.