Home / 557,851.06-769,839.15-303,202.18

Finding the Fourth Proportional to 557,851.06, 769,839.15 and 303,202.18

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Solution

The fourth proportional to 557,851.06, 769,839.15 and 303,202.18 is: 418,421.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,851.06 : 769,839.15 = 303,202.18 : x
  2. Step 2: Convert to fraction form
    557,851.06/769,839.15 = 303,202.18/x
  3. Step 3: Cross multiply
    557,851.06x = 769,839.15 × 303,202.18
  4. Step 4: Simplify right side
    557,851.06x = 233,416,908,529.35
  5. Step 5: Solve for x
    x = 233,416,908,529.35/557,851.06
  6. Step 6: Final answer
    x = 418,421.56

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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.