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Finding the Fourth Proportional to 417,025.06, 620,172.75 and 403,739.03

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Solution

The fourth proportional to 417,025.06, 620,172.75 and 403,739.03 is: 600,414.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,025.06 : 620,172.75 = 403,739.03 : x
  2. Step 2: Convert to fraction form
    417,025.06/620,172.75 = 403,739.03/x
  3. Step 3: Cross multiply
    417,025.06x = 620,172.75 × 403,739.03
  4. Step 4: Simplify right side
    417,025.06x = 250,387,947,581.89
  5. Step 5: Solve for x
    x = 250,387,947,581.89/417,025.06
  6. Step 6: Final answer
    x = 600,414.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.