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Finding the Fourth Proportional to 619,267.20, 854,683.84 and 347,445.12

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Solution

The fourth proportional to 619,267.20, 854,683.84 and 347,445.12 is: 479,527.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,267.20 : 854,683.84 = 347,445.12 : x
  2. Step 2: Convert to fraction form
    619,267.20/854,683.84 = 347,445.12/x
  3. Step 3: Cross multiply
    619,267.20x = 854,683.84 × 347,445.12
  4. Step 4: Simplify right side
    619,267.20x = 296,955,729,350.86
  5. Step 5: Solve for x
    x = 296,955,729,350.86/619,267.20
  6. Step 6: Final answer
    x = 479,527.62

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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.