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Finding the Fourth Proportional to 700,543.17, 966,679.77 and 394,611.03

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Solution

The fourth proportional to 700,543.17, 966,679.77 and 394,611.03 is: 544,523.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,543.17 : 966,679.77 = 394,611.03 : x
  2. Step 2: Convert to fraction form
    700,543.17/966,679.77 = 394,611.03/x
  3. Step 3: Cross multiply
    700,543.17x = 966,679.77 × 394,611.03
  4. Step 4: Simplify right side
    700,543.17x = 381,462,499,719.86
  5. Step 5: Solve for x
    x = 381,462,499,719.86/700,543.17
  6. Step 6: Final answer
    x = 544,523.90

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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.