Home / 511,605.72-767,428.83-191,724.17

Finding the Fourth Proportional to 511,605.72, 767,428.83 and 191,724.17

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Solution

The fourth proportional to 511,605.72, 767,428.83 and 191,724.17 is: 287,593.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,605.72 : 767,428.83 = 191,724.17 : x
  2. Step 2: Convert to fraction form
    511,605.72/767,428.83 = 191,724.17/x
  3. Step 3: Cross multiply
    511,605.72x = 767,428.83 × 191,724.17
  4. Step 4: Simplify right side
    511,605.72x = 147,134,651,628.68
  5. Step 5: Solve for x
    x = 147,134,651,628.68/511,605.72
  6. Step 6: Final answer
    x = 287,593.84

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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.