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Finding the Fourth Proportional to 1,721,761.58, 2,583,640.36 and 868,899.93

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Solution

The fourth proportional to 1,721,761.58, 2,583,640.36 and 868,899.93 is: 1,303,853.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,721,761.58 : 2,583,640.36 = 868,899.93 : x
  2. Step 2: Convert to fraction form
    1,721,761.58/2,583,640.36 = 868,899.93/x
  3. Step 3: Cross multiply
    1,721,761.58x = 2,583,640.36 × 868,899.93
  4. Step 4: Simplify right side
    1,721,761.58x = 2,244,924,919,346.65
  5. Step 5: Solve for x
    x = 2,244,924,919,346.65/1,721,761.58
  6. Step 6: Final answer
    x = 1,303,853.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.