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Finding the Fourth Proportional to 625,776.53, 863,577.32 and 339,297.35

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Solution

The fourth proportional to 625,776.53, 863,577.32 and 339,297.35 is: 468,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,776.53 : 863,577.32 = 339,297.35 : x
  2. Step 2: Convert to fraction form
    625,776.53/863,577.32 = 339,297.35/x
  3. Step 3: Cross multiply
    625,776.53x = 863,577.32 × 339,297.35
  4. Step 4: Simplify right side
    625,776.53x = 293,009,490,181.73
  5. Step 5: Solve for x
    x = 293,009,490,181.73/625,776.53
  6. Step 6: Final answer
    x = 468,233.43

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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.