Home / 685,682.83-1,027,578.36-517,017.80

Finding the Fourth Proportional to 685,682.83, 1,027,578.36 and 517,017.80

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Solution

The fourth proportional to 685,682.83, 1,027,578.36 and 517,017.80 is: 774,813.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,682.83 : 1,027,578.36 = 517,017.80 : x
  2. Step 2: Convert to fraction form
    685,682.83/1,027,578.36 = 517,017.80/x
  3. Step 3: Cross multiply
    685,682.83x = 1,027,578.36 × 517,017.80
  4. Step 4: Simplify right side
    685,682.83x = 531,276,307,522.57
  5. Step 5: Solve for x
    x = 531,276,307,522.57/685,682.83
  6. Step 6: Final answer
    x = 774,813.49

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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.