Home / 1,321,081.28-1,823,102.88-717,473.60

Finding the Fourth Proportional to 1,321,081.28, 1,823,102.88 and 717,473.60

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Solution

The fourth proportional to 1,321,081.28, 1,823,102.88 and 717,473.60 is: 990,119.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,081.28 : 1,823,102.88 = 717,473.60 : x
  2. Step 2: Convert to fraction form
    1,321,081.28/1,823,102.88 = 717,473.60/x
  3. Step 3: Cross multiply
    1,321,081.28x = 1,823,102.88 × 717,473.60
  4. Step 4: Simplify right side
    1,321,081.28x = 1,308,028,186,483.97
  5. Step 5: Solve for x
    x = 1,308,028,186,483.97/1,321,081.28
  6. Step 6: Final answer
    x = 990,119.39

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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.