Home / 903,171.28-1,246,366.09-521,189.86

Finding the Fourth Proportional to 903,171.28, 1,246,366.09 and 521,189.86

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Solution

The fourth proportional to 903,171.28, 1,246,366.09 and 521,189.86 is: 719,236.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,171.28 : 1,246,366.09 = 521,189.86 : x
  2. Step 2: Convert to fraction form
    903,171.28/1,246,366.09 = 521,189.86/x
  3. Step 3: Cross multiply
    903,171.28x = 1,246,366.09 × 521,189.86
  4. Step 4: Simplify right side
    903,171.28x = 649,593,367,955.85
  5. Step 5: Solve for x
    x = 649,593,367,955.85/903,171.28
  6. Step 6: Final answer
    x = 719,236.08

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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.