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Finding the Fourth Proportional to 624,872.31, 862,322.04 and 338,392.32

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Solution

The fourth proportional to 624,872.31, 862,322.04 and 338,392.32 is: 466,980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,872.31 : 862,322.04 = 338,392.32 : x
  2. Step 2: Convert to fraction form
    624,872.31/862,322.04 = 338,392.32/x
  3. Step 3: Cross multiply
    624,872.31x = 862,322.04 × 338,392.32
  4. Step 4: Simplify right side
    624,872.31x = 291,803,155,702.73
  5. Step 5: Solve for x
    x = 291,803,155,702.73/624,872.31
  6. Step 6: Final answer
    x = 466,980.46

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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.