Home / 629,136.60-868,155.13-353,472.85

Finding the Fourth Proportional to 629,136.60, 868,155.13 and 353,472.85

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Solution

The fourth proportional to 629,136.60, 868,155.13 and 353,472.85 is: 487,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,136.60 : 868,155.13 = 353,472.85 : x
  2. Step 2: Convert to fraction form
    629,136.60/868,155.13 = 353,472.85/x
  3. Step 3: Cross multiply
    629,136.60x = 868,155.13 × 353,472.85
  4. Step 4: Simplify right side
    629,136.60x = 306,869,268,043.22
  5. Step 5: Solve for x
    x = 306,869,268,043.22/629,136.60
  6. Step 6: Final answer
    x = 487,762.54

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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.