Home / 557,839.20-769,824.08-303,190.40

Finding the Fourth Proportional to 557,839.20, 769,824.08 and 303,190.40

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Solution

The fourth proportional to 557,839.20, 769,824.08 and 303,190.40 is: 418,406.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,839.20 : 769,824.08 = 303,190.40 : x
  2. Step 2: Convert to fraction form
    557,839.20/769,824.08 = 303,190.40/x
  3. Step 3: Cross multiply
    557,839.20x = 769,824.08 × 303,190.40
  4. Step 4: Simplify right side
    557,839.20x = 233,403,270,744.83
  5. Step 5: Solve for x
    x = 233,403,270,744.83/557,839.20
  6. Step 6: Final answer
    x = 418,406.00

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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.