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Finding the Fourth Proportional to 807,866.59, 1,114,805.19 and 445,270.49

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Solution

The fourth proportional to 807,866.59, 1,114,805.19 and 445,270.49 is: 614,445.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,866.59 : 1,114,805.19 = 445,270.49 : x
  2. Step 2: Convert to fraction form
    807,866.59/1,114,805.19 = 445,270.49/x
  3. Step 3: Cross multiply
    807,866.59x = 1,114,805.19 × 445,270.49
  4. Step 4: Simplify right side
    807,866.59x = 496,389,853,205.84
  5. Step 5: Solve for x
    x = 496,389,853,205.84/807,866.59
  6. Step 6: Final answer
    x = 614,445.33

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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.