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Finding the Fourth Proportional to 573,183.11, 789,625.58 and 400,778.47

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Solution

The fourth proportional to 573,183.11, 789,625.58 and 400,778.47 is: 552,118.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,183.11 : 789,625.58 = 400,778.47 : x
  2. Step 2: Convert to fraction form
    573,183.11/789,625.58 = 400,778.47/x
  3. Step 3: Cross multiply
    573,183.11x = 789,625.58 × 400,778.47
  4. Step 4: Simplify right side
    573,183.11x = 316,464,930,808.40
  5. Step 5: Solve for x
    x = 316,464,930,808.40/573,183.11
  6. Step 6: Final answer
    x = 552,118.39

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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.