Home / 1,185,912.37-1,636,560.12-642,048.53

Finding the Fourth Proportional to 1,185,912.37, 1,636,560.12 and 642,048.53

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Solution

The fourth proportional to 1,185,912.37, 1,636,560.12 and 642,048.53 is: 886,027.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,912.37 : 1,636,560.12 = 642,048.53 : x
  2. Step 2: Convert to fraction form
    1,185,912.37/1,636,560.12 = 642,048.53/x
  3. Step 3: Cross multiply
    1,185,912.37x = 1,636,560.12 × 642,048.53
  4. Step 4: Simplify right side
    1,185,912.37x = 1,050,751,011,721.68
  5. Step 5: Solve for x
    x = 1,050,751,011,721.68/1,185,912.37
  6. Step 6: Final answer
    x = 886,027.53

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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.