Home / 547,939.68-756,154.21-306,222.11

Finding the Fourth Proportional to 547,939.68, 756,154.21 and 306,222.11

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Solution

The fourth proportional to 547,939.68, 756,154.21 and 306,222.11 is: 422,585.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,939.68 : 756,154.21 = 306,222.11 : x
  2. Step 2: Convert to fraction form
    547,939.68/756,154.21 = 306,222.11/x
  3. Step 3: Cross multiply
    547,939.68x = 756,154.21 × 306,222.11
  4. Step 4: Simplify right side
    547,939.68x = 231,551,137,671.58
  5. Step 5: Solve for x
    x = 231,551,137,671.58/547,939.68
  6. Step 6: Final answer
    x = 422,585.09

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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.