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Finding the Fourth Proportional to 524,863.82, 724,660.70 and 403,791.50

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Solution

The fourth proportional to 524,863.82, 724,660.70 and 403,791.50 is: 557,500.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,863.82 : 724,660.70 = 403,791.50 : x
  2. Step 2: Convert to fraction form
    524,863.82/724,660.70 = 403,791.50/x
  3. Step 3: Cross multiply
    524,863.82x = 724,660.70 × 403,791.50
  4. Step 4: Simplify right side
    524,863.82x = 292,611,831,044.05
  5. Step 5: Solve for x
    x = 292,611,831,044.05/524,863.82
  6. Step 6: Final answer
    x = 557,500.48

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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.