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Finding the Fourth Proportional to 405,952.10, 608,928.15 and 169,216.10

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Solution

The fourth proportional to 405,952.10, 608,928.15 and 169,216.10 is: 253,824.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,952.10 : 608,928.15 = 169,216.10 : x
  2. Step 2: Convert to fraction form
    405,952.10/608,928.15 = 169,216.10/x
  3. Step 3: Cross multiply
    405,952.10x = 608,928.15 × 169,216.10
  4. Step 4: Simplify right side
    405,952.10x = 103,040,446,723.22
  5. Step 5: Solve for x
    x = 103,040,446,723.22/405,952.10
  6. Step 6: Final answer
    x = 253,824.15

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.