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Finding the Fourth Proportional to 577,961.10, 866,358.45 and 262,644.30

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Solution

The fourth proportional to 577,961.10, 866,358.45 and 262,644.30 is: 393,701.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,961.10 : 866,358.45 = 262,644.30 : x
  2. Step 2: Convert to fraction form
    577,961.10/866,358.45 = 262,644.30/x
  3. Step 3: Cross multiply
    577,961.10x = 866,358.45 × 262,644.30
  4. Step 4: Simplify right side
    577,961.10x = 227,544,108,649.34
  5. Step 5: Solve for x
    x = 227,544,108,649.34/577,961.10
  6. Step 6: Final answer
    x = 393,701.42

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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.