Home / 1,642,181.95-2,266,206.63-917,023.78

Finding the Fourth Proportional to 1,642,181.95, 2,266,206.63 and 917,023.78

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Solution

The fourth proportional to 1,642,181.95, 2,266,206.63 and 917,023.78 is: 1,265,490.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,181.95 : 2,266,206.63 = 917,023.78 : x
  2. Step 2: Convert to fraction form
    1,642,181.95/2,266,206.63 = 917,023.78/x
  3. Step 3: Cross multiply
    1,642,181.95x = 2,266,206.63 × 917,023.78
  4. Step 4: Simplify right side
    1,642,181.95x = 2,078,165,370,103.66
  5. Step 5: Solve for x
    x = 2,078,165,370,103.66/1,642,181.95
  6. Step 6: Final answer
    x = 1,265,490.33

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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.