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Finding the Fourth Proportional to 1,339,366.86, 1,848,346.16 and 727,531.56

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Solution

The fourth proportional to 1,339,366.86, 1,848,346.16 and 727,531.56 is: 1,004,004.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,366.86 : 1,848,346.16 = 727,531.56 : x
  2. Step 2: Convert to fraction form
    1,339,366.86/1,848,346.16 = 727,531.56/x
  3. Step 3: Cross multiply
    1,339,366.86x = 1,848,346.16 × 727,531.56
  4. Step 4: Simplify right side
    1,339,366.86x = 1,344,730,161,567.15
  5. Step 5: Solve for x
    x = 1,344,730,161,567.15/1,339,366.86
  6. Step 6: Final answer
    x = 1,004,004.36

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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.