Home / 1,185,906.36-1,636,551.46-642,042.28

Finding the Fourth Proportional to 1,185,906.36, 1,636,551.46 and 642,042.28

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Solution

The fourth proportional to 1,185,906.36, 1,636,551.46 and 642,042.28 is: 886,018.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,906.36 : 1,636,551.46 = 642,042.28 : x
  2. Step 2: Convert to fraction form
    1,185,906.36/1,636,551.46 = 642,042.28/x
  3. Step 3: Cross multiply
    1,185,906.36x = 1,636,551.46 × 642,042.28
  4. Step 4: Simplify right side
    1,185,906.36x = 1,050,735,230,715.73
  5. Step 5: Solve for x
    x = 1,050,735,230,715.73/1,185,906.36
  6. Step 6: Final answer
    x = 886,018.72

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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.