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Finding the Fourth Proportional to 700,630.42, 966,872.93 and 394,710.46

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Solution

The fourth proportional to 700,630.42, 966,872.93 and 394,710.46 is: 544,702.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,630.42 : 966,872.93 = 394,710.46 : x
  2. Step 2: Convert to fraction form
    700,630.42/966,872.93 = 394,710.46/x
  3. Step 3: Cross multiply
    700,630.42x = 966,872.93 × 394,710.46
  4. Step 4: Simplify right side
    700,630.42x = 381,634,858,961.85
  5. Step 5: Solve for x
    x = 381,634,858,961.85/700,630.42
  6. Step 6: Final answer
    x = 544,702.10

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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.