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Finding the Fourth Proportional to 518,993.00, 715,938.39 and 450,857.02

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Solution

The fourth proportional to 518,993.00, 715,938.39 and 450,857.02 is: 621,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,993.00 : 715,938.39 = 450,857.02 : x
  2. Step 2: Convert to fraction form
    518,993.00/715,938.39 = 450,857.02/x
  3. Step 3: Cross multiply
    518,993.00x = 715,938.39 × 450,857.02
  4. Step 4: Simplify right side
    518,993.00x = 322,785,847,229.15
  5. Step 5: Solve for x
    x = 322,785,847,229.15/518,993.00
  6. Step 6: Final answer
    x = 621,946.43

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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.