Home / 1,185,881.52-1,636,519.14-642,023.04

Finding the Fourth Proportional to 1,185,881.52, 1,636,519.14 and 642,023.04

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Solution

The fourth proportional to 1,185,881.52, 1,636,519.14 and 642,023.04 is: 885,993.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,881.52 : 1,636,519.14 = 642,023.04 : x
  2. Step 2: Convert to fraction form
    1,185,881.52/1,636,519.14 = 642,023.04/x
  3. Step 3: Cross multiply
    1,185,881.52x = 1,636,519.14 × 642,023.04
  4. Step 4: Simplify right side
    1,185,881.52x = 1,050,682,993,280.99
  5. Step 5: Solve for x
    x = 1,050,682,993,280.99/1,185,881.52
  6. Step 6: Final answer
    x = 885,993.23

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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.