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Finding the Fourth Proportional to 700,672.24, 966,872.64 and 394,732

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Solution

The fourth proportional to 700,672.24, 966,872.64 and 394,732 is: 544,699.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,672.24 : 966,872.64 = 394,732 : x
  2. Step 2: Convert to fraction form
    700,672.24/966,872.64 = 394,732/x
  3. Step 3: Cross multiply
    700,672.24x = 966,872.64 × 394,732
  4. Step 4: Simplify right side
    700,672.24x = 381,655,570,932.48
  5. Step 5: Solve for x
    x = 381,655,570,932.48/700,672.24
  6. Step 6: Final answer
    x = 544,699.15

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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.