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Finding the Fourth Proportional to 624,854.21, 862,301.43 and 338,374.51

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Solution

The fourth proportional to 624,854.21, 862,301.43 and 338,374.51 is: 466,958.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,854.21 : 862,301.43 = 338,374.51 : x
  2. Step 2: Convert to fraction form
    624,854.21/862,301.43 = 338,374.51/x
  3. Step 3: Cross multiply
    624,854.21x = 862,301.43 × 338,374.51
  4. Step 4: Simplify right side
    624,854.21x = 291,780,821,692.80
  5. Step 5: Solve for x
    x = 291,780,821,692.80/624,854.21
  6. Step 6: Final answer
    x = 466,958.24

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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.