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Finding the Fourth Proportional to 509,759.36, 764,589.57 and 154,776.45

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Solution

The fourth proportional to 509,759.36, 764,589.57 and 154,776.45 is: 232,149.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,759.36 : 764,589.57 = 154,776.45 : x
  2. Step 2: Convert to fraction form
    509,759.36/764,589.57 = 154,776.45/x
  3. Step 3: Cross multiply
    509,759.36x = 764,589.57 × 154,776.45
  4. Step 4: Simplify right side
    509,759.36x = 118,340,459,351.63
  5. Step 5: Solve for x
    x = 118,340,459,351.63/509,759.36
  6. Step 6: Final answer
    x = 232,149.65

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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.