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Finding the Fourth Proportional to 625,056.85, 862,577.64 and 338,578.07

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Solution

The fourth proportional to 625,056.85, 862,577.64 and 338,578.07 is: 467,237.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,056.85 : 862,577.64 = 338,578.07 : x
  2. Step 2: Convert to fraction form
    625,056.85/862,577.64 = 338,578.07/x
  3. Step 3: Cross multiply
    625,056.85x = 862,577.64 × 338,578.07
  4. Step 4: Simplify right side
    625,056.85x = 292,049,872,576.36
  5. Step 5: Solve for x
    x = 292,049,872,576.36/625,056.85
  6. Step 6: Final answer
    x = 467,237.30

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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.