Home / 1,185,867.53-1,636,496.83-642,002.95

Finding the Fourth Proportional to 1,185,867.53, 1,636,496.83 and 642,002.95

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Solution

The fourth proportional to 1,185,867.53, 1,636,496.83 and 642,002.95 is: 885,963.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,867.53 : 1,636,496.83 = 642,002.95 : x
  2. Step 2: Convert to fraction form
    1,185,867.53/1,636,496.83 = 642,002.95/x
  3. Step 3: Cross multiply
    1,185,867.53x = 1,636,496.83 × 642,002.95
  4. Step 4: Simplify right side
    1,185,867.53x = 1,050,635,792,525.65
  5. Step 5: Solve for x
    x = 1,050,635,792,525.65/1,185,867.53
  6. Step 6: Final answer
    x = 885,963.88

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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.