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Finding the Fourth Proportional to 474,068.42, 711,009.85 and 394,616.76

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Solution

The fourth proportional to 474,068.42, 711,009.85 and 394,616.76 is: 591,847.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,068.42 : 711,009.85 = 394,616.76 : x
  2. Step 2: Convert to fraction form
    474,068.42/711,009.85 = 394,616.76/x
  3. Step 3: Cross multiply
    474,068.42x = 711,009.85 × 394,616.76
  4. Step 4: Simplify right side
    474,068.42x = 280,576,403,335.09
  5. Step 5: Solve for x
    x = 280,576,403,335.09/474,068.42
  6. Step 6: Final answer
    x = 591,847.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.