Home / 618,923.20-928,255.20-303,606.40

Finding the Fourth Proportional to 618,923.20, 928,255.20 and 303,606.40

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Solution

The fourth proportional to 618,923.20, 928,255.20 and 303,606.40 is: 455,346.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,923.20 : 928,255.20 = 303,606.40 : x
  2. Step 2: Convert to fraction form
    618,923.20/928,255.20 = 303,606.40/x
  3. Step 3: Cross multiply
    618,923.20x = 928,255.20 × 303,606.40
  4. Step 4: Simplify right side
    618,923.20x = 281,824,219,553.28
  5. Step 5: Solve for x
    x = 281,824,219,553.28/618,923.20
  6. Step 6: Final answer
    x = 455,346.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.