Home / 557,786.52-769,756.77-303,154.11

Finding the Fourth Proportional to 557,786.52, 769,756.77 and 303,154.11

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Solution

The fourth proportional to 557,786.52, 769,756.77 and 303,154.11 is: 418,358.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,786.52 : 769,756.77 = 303,154.11 : x
  2. Step 2: Convert to fraction form
    557,786.52/769,756.77 = 303,154.11/x
  3. Step 3: Cross multiply
    557,786.52x = 769,756.77 × 303,154.11
  4. Step 4: Simplify right side
    557,786.52x = 233,354,928,525.83
  5. Step 5: Solve for x
    x = 233,354,928,525.83/557,786.52
  6. Step 6: Final answer
    x = 418,358.85

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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.