Home / 1,681,587.60-2,320,640.24-917,690.44

Finding the Fourth Proportional to 1,681,587.60, 2,320,640.24 and 917,690.44

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Solution

The fourth proportional to 1,681,587.60, 2,320,640.24 and 917,690.44 is: 1,266,439.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,681,587.60 : 2,320,640.24 = 917,690.44 : x
  2. Step 2: Convert to fraction form
    1,681,587.60/2,320,640.24 = 917,690.44/x
  3. Step 3: Cross multiply
    1,681,587.60x = 2,320,640.24 × 917,690.44
  4. Step 4: Simplify right side
    1,681,587.60x = 2,129,629,362,927.31
  5. Step 5: Solve for x
    x = 2,129,629,362,927.31/1,681,587.60
  6. Step 6: Final answer
    x = 1,266,439.74

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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.