Home / 326,008.38-449,893.20-190,136.55

Finding the Fourth Proportional to 326,008.38, 449,893.20 and 190,136.55

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Solution

The fourth proportional to 326,008.38, 449,893.20 and 190,136.55 is: 262,389.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,008.38 : 449,893.20 = 190,136.55 : x
  2. Step 2: Convert to fraction form
    326,008.38/449,893.20 = 190,136.55/x
  3. Step 3: Cross multiply
    326,008.38x = 449,893.20 × 190,136.55
  4. Step 4: Simplify right side
    326,008.38x = 85,541,140,916.46
  5. Step 5: Solve for x
    x = 85,541,140,916.46/326,008.38
  6. Step 6: Final answer
    x = 262,389.39

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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.