Home / 1,186,507.32-1,637,376.17-642,641.73

Finding the Fourth Proportional to 1,186,507.32, 1,637,376.17 and 642,641.73

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Solution

The fourth proportional to 1,186,507.32, 1,637,376.17 and 642,641.73 is: 886,843.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,186,507.32 : 1,637,376.17 = 642,641.73 : x
  2. Step 2: Convert to fraction form
    1,186,507.32/1,637,376.17 = 642,641.73/x
  3. Step 3: Cross multiply
    1,186,507.32x = 1,637,376.17 × 642,641.73
  4. Step 4: Simplify right side
    1,186,507.32x = 1,052,246,251,336.37
  5. Step 5: Solve for x
    x = 1,052,246,251,336.37/1,186,507.32
  6. Step 6: Final answer
    x = 886,843.46

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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.