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Finding the Fourth Proportional to 578,997.76, 799,406.96 and 361,537.60

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Solution

The fourth proportional to 578,997.76, 799,406.96 and 361,537.60 is: 499,165.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,997.76 : 799,406.96 = 361,537.60 : x
  2. Step 2: Convert to fraction form
    578,997.76/799,406.96 = 361,537.60/x
  3. Step 3: Cross multiply
    578,997.76x = 799,406.96 × 361,537.60
  4. Step 4: Simplify right side
    578,997.76x = 289,015,673,741.70
  5. Step 5: Solve for x
    x = 289,015,673,741.70/578,997.76
  6. Step 6: Final answer
    x = 499,165.44

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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.