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Finding the Fourth Proportional to 624,216.33, 935,930.84 and 343,930.41

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Solution

The fourth proportional to 624,216.33, 935,930.84 and 343,930.41 is: 515,678.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,216.33 : 935,930.84 = 343,930.41 : x
  2. Step 2: Convert to fraction form
    624,216.33/935,930.84 = 343,930.41/x
  3. Step 3: Cross multiply
    624,216.33x = 935,930.84 × 343,930.41
  4. Step 4: Simplify right side
    624,216.33x = 321,895,075,813.19
  5. Step 5: Solve for x
    x = 321,895,075,813.19/624,216.33
  6. Step 6: Final answer
    x = 515,678.72

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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.