Home / 1,217,803.29-1,680,573.03-658,997.76

Finding the Fourth Proportional to 1,217,803.29, 1,680,573.03 and 658,997.76

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Solution

The fourth proportional to 1,217,803.29, 1,680,573.03 and 658,997.76 is: 909,419.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,803.29 : 1,680,573.03 = 658,997.76 : x
  2. Step 2: Convert to fraction form
    1,217,803.29/1,680,573.03 = 658,997.76/x
  3. Step 3: Cross multiply
    1,217,803.29x = 1,680,573.03 × 658,997.76
  4. Step 4: Simplify right side
    1,217,803.29x = 1,107,493,862,286.41
  5. Step 5: Solve for x
    x = 1,107,493,862,286.41/1,217,803.29
  6. Step 6: Final answer
    x = 909,419.34

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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.