Home / 1,185,825.32-1,636,431.44-641,957.14

Finding the Fourth Proportional to 1,185,825.32, 1,636,431.44 and 641,957.14

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Solution

The fourth proportional to 1,185,825.32, 1,636,431.44 and 641,957.14 is: 885,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,825.32 : 1,636,431.44 = 641,957.14 : x
  2. Step 2: Convert to fraction form
    1,185,825.32/1,636,431.44 = 641,957.14/x
  3. Step 3: Cross multiply
    1,185,825.32x = 1,636,431.44 × 641,957.14
  4. Step 4: Simplify right side
    1,185,825.32x = 1,050,518,850,317.11
  5. Step 5: Solve for x
    x = 1,050,518,850,317.11/1,185,825.32
  6. Step 6: Final answer
    x = 885,896.79

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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.