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Finding the Fourth Proportional to 806,695.70, 1,113,219.70 and 444,115.94

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Solution

The fourth proportional to 806,695.70, 1,113,219.70 and 444,115.94 is: 612,868.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,695.70 : 1,113,219.70 = 444,115.94 : x
  2. Step 2: Convert to fraction form
    806,695.70/1,113,219.70 = 444,115.94/x
  3. Step 3: Cross multiply
    806,695.70x = 1,113,219.70 × 444,115.94
  4. Step 4: Simplify right side
    806,695.70x = 494,398,613,492.02
  5. Step 5: Solve for x
    x = 494,398,613,492.02/806,695.70
  6. Step 6: Final answer
    x = 612,868.78

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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.