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Finding the Fourth Proportional to 349,738.40, 524,996.40 and 216,768.80

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Solution

The fourth proportional to 349,738.40, 524,996.40 and 216,768.80 is: 325,394.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,738.40 : 524,996.40 = 216,768.80 : x
  2. Step 2: Convert to fraction form
    349,738.40/524,996.40 = 216,768.80/x
  3. Step 3: Cross multiply
    349,738.40x = 524,996.40 × 216,768.80
  4. Step 4: Simplify right side
    349,738.40x = 113,802,839,632.32
  5. Step 5: Solve for x
    x = 113,802,839,632.32/349,738.40
  6. Step 6: Final answer
    x = 325,394.18

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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.