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Finding the Fourth Proportional to 624,965.40, 937,462.68 and 225,638.64

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Solution

The fourth proportional to 624,965.40, 937,462.68 and 225,638.64 is: 338,463.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,965.40 : 937,462.68 = 225,638.64 : x
  2. Step 2: Convert to fraction form
    624,965.40/937,462.68 = 225,638.64/x
  3. Step 3: Cross multiply
    624,965.40x = 937,462.68 × 225,638.64
  4. Step 4: Simplify right side
    624,965.40x = 211,527,804,165.96
  5. Step 5: Solve for x
    x = 211,527,804,165.96/624,965.40
  6. Step 6: Final answer
    x = 338,463.22

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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.