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Finding the Fourth Proportional to 592,647.60, 817,847.43 and 320,709.54

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Solution

The fourth proportional to 592,647.60, 817,847.43 and 320,709.54 is: 442,575.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,647.60 : 817,847.43 = 320,709.54 : x
  2. Step 2: Convert to fraction form
    592,647.60/817,847.43 = 320,709.54/x
  3. Step 3: Cross multiply
    592,647.60x = 817,847.43 × 320,709.54
  4. Step 4: Simplify right side
    592,647.60x = 262,291,473,065.48
  5. Step 5: Solve for x
    x = 262,291,473,065.48/592,647.60
  6. Step 6: Final answer
    x = 442,575.78

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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.