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Finding the Fourth Proportional to 682,188.48, 941,408.73 and 376,294.61

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Solution

The fourth proportional to 682,188.48, 941,408.73 and 376,294.61 is: 519,280.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,188.48 : 941,408.73 = 376,294.61 : x
  2. Step 2: Convert to fraction form
    682,188.48/941,408.73 = 376,294.61/x
  3. Step 3: Cross multiply
    682,188.48x = 941,408.73 × 376,294.61
  4. Step 4: Simplify right side
    682,188.48x = 354,247,033,259.47
  5. Step 5: Solve for x
    x = 354,247,033,259.47/682,188.48
  6. Step 6: Final answer
    x = 519,280.29

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1.5x scale

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.