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Finding the Fourth Proportional to 2,993,874.82, 4,490,747.76 and 834,842.40

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Solution

The fourth proportional to 2,993,874.82, 4,490,747.76 and 834,842.40 is: 1,252,245.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,993,874.82 : 4,490,747.76 = 834,842.40 : x
  2. Step 2: Convert to fraction form
    2,993,874.82/4,490,747.76 = 834,842.40/x
  3. Step 3: Cross multiply
    2,993,874.82x = 4,490,747.76 × 834,842.40
  4. Step 4: Simplify right side
    2,993,874.82x = 3,749,066,637,753.02
  5. Step 5: Solve for x
    x = 3,749,066,637,753.02/2,993,874.82
  6. Step 6: Final answer
    x = 1,252,245.62

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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.