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Finding the Fourth Proportional to 443,616.58, 665,480.10 and 173,709.88

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Solution

The fourth proportional to 443,616.58, 665,480.10 and 173,709.88 is: 260,586.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,616.58 : 665,480.10 = 173,709.88 : x
  2. Step 2: Convert to fraction form
    443,616.58/665,480.10 = 173,709.88/x
  3. Step 3: Cross multiply
    443,616.58x = 665,480.10 × 173,709.88
  4. Step 4: Simplify right side
    443,616.58x = 115,600,468,313.39
  5. Step 5: Solve for x
    x = 115,600,468,313.39/443,616.58
  6. Step 6: Final answer
    x = 260,586.45

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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.