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Finding the Fourth Proportional to 592,402.12, 817,512.44 and 320,469.33

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Solution

The fourth proportional to 592,402.12, 817,512.44 and 320,469.33 is: 442,246.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,402.12 : 817,512.44 = 320,469.33 : x
  2. Step 2: Convert to fraction form
    592,402.12/817,512.44 = 320,469.33/x
  3. Step 3: Cross multiply
    592,402.12x = 817,512.44 × 320,469.33
  4. Step 4: Simplify right side
    592,402.12x = 261,987,665,376.79
  5. Step 5: Solve for x
    x = 261,987,665,376.79/592,402.12
  6. Step 6: Final answer
    x = 442,246.34

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1.5x scale

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.