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Finding the Fourth Proportional to 655,896.68, 905,165.40 and 365,508.56

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Solution

The fourth proportional to 655,896.68, 905,165.40 and 365,508.56 is: 504,417.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,896.68 : 905,165.40 = 365,508.56 : x
  2. Step 2: Convert to fraction form
    655,896.68/905,165.40 = 365,508.56/x
  3. Step 3: Cross multiply
    655,896.68x = 905,165.40 × 365,508.56
  4. Step 4: Simplify right side
    655,896.68x = 330,845,701,915.82
  5. Step 5: Solve for x
    x = 330,845,701,915.82/655,896.68
  6. Step 6: Final answer
    x = 504,417.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.