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Finding the Fourth Proportional to 442,473.19, 610,665.42 and 251,515.27

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Solution

The fourth proportional to 442,473.19, 610,665.42 and 251,515.27 is: 347,120.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,473.19 : 610,665.42 = 251,515.27 : x
  2. Step 2: Convert to fraction form
    442,473.19/610,665.42 = 251,515.27/x
  3. Step 3: Cross multiply
    442,473.19x = 610,665.42 × 251,515.27
  4. Step 4: Simplify right side
    442,473.19x = 153,591,677,990.96
  5. Step 5: Solve for x
    x = 153,591,677,990.96/442,473.19
  6. Step 6: Final answer
    x = 347,120.87

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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.