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Finding the Fourth Proportional to 624,804.24, 862,227.81 and 352,928.55

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Solution

The fourth proportional to 624,804.24, 862,227.81 and 352,928.55 is: 487,040.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,804.24 : 862,227.81 = 352,928.55 : x
  2. Step 2: Convert to fraction form
    624,804.24/862,227.81 = 352,928.55/x
  3. Step 3: Cross multiply
    624,804.24x = 862,227.81 × 352,928.55
  4. Step 4: Simplify right side
    624,804.24x = 304,304,810,752.98
  5. Step 5: Solve for x
    x = 304,304,810,752.98/624,804.24
  6. Step 6: Final answer
    x = 487,040.25

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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.