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Finding the Fourth Proportional to 344,066.57, 474,620.48 and 319,710.92

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Solution

The fourth proportional to 344,066.57, 474,620.48 and 319,710.92 is: 441,023.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,066.57 : 474,620.48 = 319,710.92 : x
  2. Step 2: Convert to fraction form
    344,066.57/474,620.48 = 319,710.92/x
  3. Step 3: Cross multiply
    344,066.57x = 474,620.48 × 319,710.92
  4. Step 4: Simplify right side
    344,066.57x = 151,741,347,538.90
  5. Step 5: Solve for x
    x = 151,741,347,538.90/344,066.57
  6. Step 6: Final answer
    x = 441,023.22

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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.