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Finding the Fourth Proportional to 807,753.80, 1,114,695.06 and 445,178

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Solution

The fourth proportional to 807,753.80, 1,114,695.06 and 445,178 is: 614,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,753.80 : 1,114,695.06 = 445,178 : x
  2. Step 2: Convert to fraction form
    807,753.80/1,114,695.06 = 445,178/x
  3. Step 3: Cross multiply
    807,753.80x = 1,114,695.06 × 445,178
  4. Step 4: Simplify right side
    807,753.80x = 496,237,717,420.68
  5. Step 5: Solve for x
    x = 496,237,717,420.68/807,753.80
  6. Step 6: Final answer
    x = 614,342.78

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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.