Home / 547,922.78-756,136.24-306,209.40

Finding the Fourth Proportional to 547,922.78, 756,136.24 and 306,209.40

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Solution

The fourth proportional to 547,922.78, 756,136.24 and 306,209.40 is: 422,570.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,922.78 : 756,136.24 = 306,209.40 : x
  2. Step 2: Convert to fraction form
    547,922.78/756,136.24 = 306,209.40/x
  3. Step 3: Cross multiply
    547,922.78x = 756,136.24 × 306,209.40
  4. Step 4: Simplify right side
    547,922.78x = 231,536,024,368.66
  5. Step 5: Solve for x
    x = 231,536,024,368.66/547,922.78
  6. Step 6: Final answer
    x = 422,570.54

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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.