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Finding the Fourth Proportional to 417,118.52, 575,317.81 and 273,826.28

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Solution

The fourth proportional to 417,118.52, 575,317.81 and 273,826.28 is: 377,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,118.52 : 575,317.81 = 273,826.28 : x
  2. Step 2: Convert to fraction form
    417,118.52/575,317.81 = 273,826.28/x
  3. Step 3: Cross multiply
    417,118.52x = 575,317.81 × 273,826.28
  4. Step 4: Simplify right side
    417,118.52x = 157,537,135,730.05
  5. Step 5: Solve for x
    x = 157,537,135,730.05/417,118.52
  6. Step 6: Final answer
    x = 377,679.55

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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.