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Finding the Fourth Proportional to 609,630.26, 910,737.53 and 394,646.78

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Solution

The fourth proportional to 609,630.26, 910,737.53 and 394,646.78 is: 589,569.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,630.26 : 910,737.53 = 394,646.78 : x
  2. Step 2: Convert to fraction form
    609,630.26/910,737.53 = 394,646.78/x
  3. Step 3: Cross multiply
    609,630.26x = 910,737.53 × 394,646.78
  4. Step 4: Simplify right side
    609,630.26x = 359,419,633,639.65
  5. Step 5: Solve for x
    x = 359,419,633,639.65/609,630.26
  6. Step 6: Final answer
    x = 589,569.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.