Home / 1,185,891.33-1,636,530.62-642,027.21

Finding the Fourth Proportional to 1,185,891.33, 1,636,530.62 and 642,027.21

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Solution

The fourth proportional to 1,185,891.33, 1,636,530.62 and 642,027.21 is: 885,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,891.33 : 1,636,530.62 = 642,027.21 : x
  2. Step 2: Convert to fraction form
    1,185,891.33/1,636,530.62 = 642,027.21/x
  3. Step 3: Cross multiply
    1,185,891.33x = 1,636,530.62 × 642,027.21
  4. Step 4: Simplify right side
    1,185,891.33x = 1,050,697,184,828.03
  5. Step 5: Solve for x
    x = 1,050,697,184,828.03/1,185,891.33
  6. Step 6: Final answer
    x = 885,997.86

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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.