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Finding the Fourth Proportional to 624,682.10, 936,476.40 and 424,352.90

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Solution

The fourth proportional to 624,682.10, 936,476.40 and 424,352.90 is: 636,157.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,682.10 : 936,476.40 = 424,352.90 : x
  2. Step 2: Convert to fraction form
    624,682.10/936,476.40 = 424,352.90/x
  3. Step 3: Cross multiply
    624,682.10x = 936,476.40 × 424,352.90
  4. Step 4: Simplify right side
    624,682.10x = 397,396,476,121.56
  5. Step 5: Solve for x
    x = 397,396,476,121.56/624,682.10
  6. Step 6: Final answer
    x = 636,157.94

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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.