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Finding the Fourth Proportional to 448,489.55, 673,049.57 and 405,610.98

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Solution

The fourth proportional to 448,489.55, 673,049.57 and 405,610.98 is: 608,701.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,489.55 : 673,049.57 = 405,610.98 : x
  2. Step 2: Convert to fraction form
    448,489.55/673,049.57 = 405,610.98/x
  3. Step 3: Cross multiply
    448,489.55x = 673,049.57 × 405,610.98
  4. Step 4: Simplify right side
    448,489.55x = 272,996,295,676.28
  5. Step 5: Solve for x
    x = 272,996,295,676.28/448,489.55
  6. Step 6: Final answer
    x = 608,701.58

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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.