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Finding the Fourth Proportional to 648,181.36, 971,604.84 and 248,715.76

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Solution

The fourth proportional to 648,181.36, 971,604.84 and 248,715.76 is: 372,817.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,181.36 : 971,604.84 = 248,715.76 : x
  2. Step 2: Convert to fraction form
    648,181.36/971,604.84 = 248,715.76/x
  3. Step 3: Cross multiply
    648,181.36x = 971,604.84 × 248,715.76
  4. Step 4: Simplify right side
    648,181.36x = 241,653,436,200.28
  5. Step 5: Solve for x
    x = 241,653,436,200.28/648,181.36
  6. Step 6: Final answer
    x = 372,817.63

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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.