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Finding the Fourth Proportional to 619,953.54, 929,042.24 and 353,163.21

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Solution

The fourth proportional to 619,953.54, 929,042.24 and 353,163.21 is: 529,238.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,953.54 : 929,042.24 = 353,163.21 : x
  2. Step 2: Convert to fraction form
    619,953.54/929,042.24 = 353,163.21/x
  3. Step 3: Cross multiply
    619,953.54x = 929,042.24 × 353,163.21
  4. Step 4: Simplify right side
    619,953.54x = 328,103,537,938.17
  5. Step 5: Solve for x
    x = 328,103,537,938.17/619,953.54
  6. Step 6: Final answer
    x = 529,238.91

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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.