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Finding the Fourth Proportional to 565,991.46, 848,987.19 and 387,958.74

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Solution

The fourth proportional to 565,991.46, 848,987.19 and 387,958.74 is: 581,938.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,991.46 : 848,987.19 = 387,958.74 : x
  2. Step 2: Convert to fraction form
    565,991.46/848,987.19 = 387,958.74/x
  3. Step 3: Cross multiply
    565,991.46x = 848,987.19 × 387,958.74
  4. Step 4: Simplify right side
    565,991.46x = 329,372,000,508.54
  5. Step 5: Solve for x
    x = 329,372,000,508.54/565,991.46
  6. Step 6: Final answer
    x = 581,938.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.