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Finding the Fourth Proportional to 416,730.93, 575,087.43 and 235,442.79

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Solution

The fourth proportional to 416,730.93, 575,087.43 and 235,442.79 is: 324,910.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,730.93 : 575,087.43 = 235,442.79 : x
  2. Step 2: Convert to fraction form
    416,730.93/575,087.43 = 235,442.79/x
  3. Step 3: Cross multiply
    416,730.93x = 575,087.43 × 235,442.79
  4. Step 4: Simplify right side
    416,730.93x = 135,400,189,896.04
  5. Step 5: Solve for x
    x = 135,400,189,896.04/416,730.93
  6. Step 6: Final answer
    x = 324,910.35

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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.