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Finding the Fourth Proportional to 807,810.68, 1,114,773.15 and 445,234.73

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Solution

The fourth proportional to 807,810.68, 1,114,773.15 and 445,234.73 is: 614,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,810.68 : 1,114,773.15 = 445,234.73 : x
  2. Step 2: Convert to fraction form
    807,810.68/1,114,773.15 = 445,234.73/x
  3. Step 3: Cross multiply
    807,810.68x = 1,114,773.15 × 445,234.73
  4. Step 4: Simplify right side
    807,810.68x = 496,335,725,238.43
  5. Step 5: Solve for x
    x = 496,335,725,238.43/807,810.68
  6. Step 6: Final answer
    x = 614,420.85

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1.5x scale

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.