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Finding the Fourth Proportional to 566,754.65, 780,791.10 and 394,376.17

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Solution

The fourth proportional to 566,754.65, 780,791.10 and 394,376.17 is: 543,313.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    566,754.65 : 780,791.10 = 394,376.17 : x
  2. Step 2: Convert to fraction form
    566,754.65/780,791.10 = 394,376.17/x
  3. Step 3: Cross multiply
    566,754.65x = 780,791.10 × 394,376.17
  4. Step 4: Simplify right side
    566,754.65x = 307,925,403,588.09
  5. Step 5: Solve for x
    x = 307,925,403,588.09/566,754.65
  6. Step 6: Final answer
    x = 543,313.41

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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.