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Finding the Fourth Proportional to 624,814.54, 862,248.16 and 338,334.64

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Solution

The fourth proportional to 624,814.54, 862,248.16 and 338,334.64 is: 466,904.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,814.54 : 862,248.16 = 338,334.64 : x
  2. Step 2: Convert to fraction form
    624,814.54/862,248.16 = 338,334.64/x
  3. Step 3: Cross multiply
    624,814.54x = 862,248.16 × 338,334.64
  4. Step 4: Simplify right side
    624,814.54x = 291,728,420,804.26
  5. Step 5: Solve for x
    x = 291,728,420,804.26/624,814.54
  6. Step 6: Final answer
    x = 466,904.02

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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.