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Finding the Fourth Proportional to 565,992.96, 848,989.44 and 387,960.24

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Solution

The fourth proportional to 565,992.96, 848,989.44 and 387,960.24 is: 581,940.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,992.96 : 848,989.44 = 387,960.24 : x
  2. Step 2: Convert to fraction form
    565,992.96/848,989.44 = 387,960.24/x
  3. Step 3: Cross multiply
    565,992.96x = 848,989.44 × 387,960.24
  4. Step 4: Simplify right side
    565,992.96x = 329,374,146,899.87
  5. Step 5: Solve for x
    x = 329,374,146,899.87/565,992.96
  6. Step 6: Final answer
    x = 581,940.36

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Double scale
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Similar ratio
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1.5x scale

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.