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Finding the Fourth Proportional to 571,682.22, 788,916.07 and 313,553.90

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Solution

The fourth proportional to 571,682.22, 788,916.07 and 313,553.90 is: 432,701.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,682.22 : 788,916.07 = 313,553.90 : x
  2. Step 2: Convert to fraction form
    571,682.22/788,916.07 = 313,553.90/x
  3. Step 3: Cross multiply
    571,682.22x = 788,916.07 × 313,553.90
  4. Step 4: Simplify right side
    571,682.22x = 247,367,712,885.41
  5. Step 5: Solve for x
    x = 247,367,712,885.41/571,682.22
  6. Step 6: Final answer
    x = 432,701.43

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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.