Home / 326,029-449,921.25-190,156.78

Finding the Fourth Proportional to 326,029, 449,921.25 and 190,156.78

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Solution

The fourth proportional to 326,029, 449,921.25 and 190,156.78 is: 262,417.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,029 : 449,921.25 = 190,156.78 : x
  2. Step 2: Convert to fraction form
    326,029/449,921.25 = 190,156.78/x
  3. Step 3: Cross multiply
    326,029x = 449,921.25 × 190,156.78
  4. Step 4: Simplify right side
    326,029x = 85,555,576,153.58
  5. Step 5: Solve for x
    x = 85,555,576,153.58/326,029
  6. Step 6: Final answer
    x = 262,417.07

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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.