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Finding the Fourth Proportional to 352,710.22, 486,408.55 and 272,009.92

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Solution

The fourth proportional to 352,710.22, 486,408.55 and 272,009.92 is: 375,118.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,710.22 : 486,408.55 = 272,009.92 : x
  2. Step 2: Convert to fraction form
    352,710.22/486,408.55 = 272,009.92/x
  3. Step 3: Cross multiply
    352,710.22x = 486,408.55 × 272,009.92
  4. Step 4: Simplify right side
    352,710.22x = 132,307,950,772.82
  5. Step 5: Solve for x
    x = 132,307,950,772.82/352,710.22
  6. Step 6: Final answer
    x = 375,118.00

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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.