Home / 1,217,538.56-1,680,170.88-673,660.16

Finding the Fourth Proportional to 1,217,538.56, 1,680,170.88 and 673,660.16

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Solution

The fourth proportional to 1,217,538.56, 1,680,170.88 and 673,660.16 is: 929,633.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,538.56 : 1,680,170.88 = 673,660.16 : x
  2. Step 2: Convert to fraction form
    1,217,538.56/1,680,170.88 = 673,660.16/x
  3. Step 3: Cross multiply
    1,217,538.56x = 1,680,170.88 × 673,660.16
  4. Step 4: Simplify right side
    1,217,538.56x = 1,131,864,183,848.14
  5. Step 5: Solve for x
    x = 1,131,864,183,848.14/1,217,538.56
  6. Step 6: Final answer
    x = 929,633.13

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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.