Home / 1,185,983.65-1,636,655.27-642,119.37

Finding the Fourth Proportional to 1,185,983.65, 1,636,655.27 and 642,119.37

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Solution

The fourth proportional to 1,185,983.65, 1,636,655.27 and 642,119.37 is: 886,123.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185,983.65 : 1,636,655.27 = 642,119.37 : x
  2. Step 2: Convert to fraction form
    1,185,983.65/1,636,655.27 = 642,119.37/x
  3. Step 3: Cross multiply
    1,185,983.65x = 1,636,655.27 × 642,119.37
  4. Step 4: Simplify right side
    1,185,983.65x = 1,050,928,050,879.58
  5. Step 5: Solve for x
    x = 1,050,928,050,879.58/1,185,983.65
  6. Step 6: Final answer
    x = 886,123.56

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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.