Home / 1,217,556.64-1,680,084.21-673,620.58

Finding the Fourth Proportional to 1,217,556.64, 1,680,084.21 and 673,620.58

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Solution

The fourth proportional to 1,217,556.64, 1,680,084.21 and 673,620.58 is: 929,516.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,556.64 : 1,680,084.21 = 673,620.58 : x
  2. Step 2: Convert to fraction form
    1,217,556.64/1,680,084.21 = 673,620.58/x
  3. Step 3: Cross multiply
    1,217,556.64x = 1,680,084.21 × 673,620.58
  4. Step 4: Simplify right side
    1,217,556.64x = 1,131,739,299,989.04
  5. Step 5: Solve for x
    x = 1,131,739,299,989.04/1,217,556.64
  6. Step 6: Final answer
    x = 929,516.76

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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.