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Finding the Fourth Proportional to 399,862.25, 599,887.16 and 273,561.96

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Solution

The fourth proportional to 399,862.25, 599,887.16 and 273,561.96 is: 410,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,862.25 : 599,887.16 = 273,561.96 : x
  2. Step 2: Convert to fraction form
    399,862.25/599,887.16 = 273,561.96/x
  3. Step 3: Cross multiply
    399,862.25x = 599,887.16 × 273,561.96
  4. Step 4: Simplify right side
    399,862.25x = 164,106,307,268.43
  5. Step 5: Solve for x
    x = 164,106,307,268.43/399,862.25
  6. Step 6: Final answer
    x = 410,407.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.