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Finding the Fourth Proportional to 300,568.40, 414,683.70 and 173,241.26

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Solution

The fourth proportional to 300,568.40, 414,683.70 and 173,241.26 is: 239,014.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,568.40 : 414,683.70 = 173,241.26 : x
  2. Step 2: Convert to fraction form
    300,568.40/414,683.70 = 173,241.26/x
  3. Step 3: Cross multiply
    300,568.40x = 414,683.70 × 173,241.26
  4. Step 4: Simplify right side
    300,568.40x = 71,840,326,689.46
  5. Step 5: Solve for x
    x = 71,840,326,689.46/300,568.40
  6. Step 6: Final answer
    x = 239,014.90

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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.