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Finding the Fourth Proportional to 882,193, 1,217,435.70 and 479,793.64

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Solution

The fourth proportional to 882,193, 1,217,435.70 and 479,793.64 is: 662,120.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    882,193 : 1,217,435.70 = 479,793.64 : x
  2. Step 2: Convert to fraction form
    882,193/1,217,435.70 = 479,793.64/x
  3. Step 3: Cross multiply
    882,193x = 1,217,435.70 × 479,793.64
  4. Step 4: Simplify right side
    882,193x = 584,117,905,968.95
  5. Step 5: Solve for x
    x = 584,117,905,968.95/882,193
  6. Step 6: Final answer
    x = 662,120.31

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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.