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Finding the Fourth Proportional to 587,499.24, 810,739.62 and 345,753.12

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Solution

The fourth proportional to 587,499.24, 810,739.62 and 345,753.12 is: 477,133.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,499.24 : 810,739.62 = 345,753.12 : x
  2. Step 2: Convert to fraction form
    587,499.24/810,739.62 = 345,753.12/x
  3. Step 3: Cross multiply
    587,499.24x = 810,739.62 × 345,753.12
  4. Step 4: Simplify right side
    587,499.24x = 280,315,753,122.61
  5. Step 5: Solve for x
    x = 280,315,753,122.61/587,499.24
  6. Step 6: Final answer
    x = 477,133.81

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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.