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Finding the Fourth Proportional to 1,254,766.93, 1,731,589.31 and 681,807.08

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Solution

The fourth proportional to 1,254,766.93, 1,731,589.31 and 681,807.08 is: 940,899.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,254,766.93 : 1,731,589.31 = 681,807.08 : x
  2. Step 2: Convert to fraction form
    1,254,766.93/1,731,589.31 = 681,807.08/x
  3. Step 3: Cross multiply
    1,254,766.93x = 1,731,589.31 × 681,807.08
  4. Step 4: Simplify right side
    1,254,766.93x = 1,180,609,857,243.81
  5. Step 5: Solve for x
    x = 1,180,609,857,243.81/1,254,766.93
  6. Step 6: Final answer
    x = 940,899.73

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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.