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Finding the Fourth Proportional to 649,299.68, 896,122.56 and 373,651.86

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Solution

The fourth proportional to 649,299.68, 896,122.56 and 373,651.86 is: 515,690.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,299.68 : 896,122.56 = 373,651.86 : x
  2. Step 2: Convert to fraction form
    649,299.68/896,122.56 = 373,651.86/x
  3. Step 3: Cross multiply
    649,299.68x = 896,122.56 × 373,651.86
  4. Step 4: Simplify right side
    649,299.68x = 334,837,861,331.96
  5. Step 5: Solve for x
    x = 334,837,861,331.96/649,299.68
  6. Step 6: Final answer
    x = 515,690.78

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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.