Home / 557,919.05-769,928.78-303,270.23

Finding the Fourth Proportional to 557,919.05, 769,928.78 and 303,270.23

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Solution

The fourth proportional to 557,919.05, 769,928.78 and 303,270.23 is: 418,513.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,919.05 : 769,928.78 = 303,270.23 : x
  2. Step 2: Convert to fraction form
    557,919.05/769,928.78 = 303,270.23/x
  3. Step 3: Cross multiply
    557,919.05x = 769,928.78 × 303,270.23
  4. Step 4: Simplify right side
    557,919.05x = 233,496,480,877.22
  5. Step 5: Solve for x
    x = 233,496,480,877.22/557,919.05
  6. Step 6: Final answer
    x = 418,513.19

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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.