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Finding the Fourth Proportional to 695,850.85, 960,257.94 and 409,389.39

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Solution

The fourth proportional to 695,850.85, 960,257.94 and 409,389.39 is: 564,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,850.85 : 960,257.94 = 409,389.39 : x
  2. Step 2: Convert to fraction form
    695,850.85/960,257.94 = 409,389.39/x
  3. Step 3: Cross multiply
    695,850.85x = 960,257.94 × 409,389.39
  4. Step 4: Simplify right side
    695,850.85x = 393,119,410,764.05
  5. Step 5: Solve for x
    x = 393,119,410,764.05/695,850.85
  6. Step 6: Final answer
    x = 564,947.80

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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.