Home / 1,217,555.64-1,680,082.83-673,619.58

Finding the Fourth Proportional to 1,217,555.64, 1,680,082.83 and 673,619.58

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Solution

The fourth proportional to 1,217,555.64, 1,680,082.83 and 673,619.58 is: 929,515.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,555.64 : 1,680,082.83 = 673,619.58 : x
  2. Step 2: Convert to fraction form
    1,217,555.64/1,680,082.83 = 673,619.58/x
  3. Step 3: Cross multiply
    1,217,555.64x = 1,680,082.83 × 673,619.58
  4. Step 4: Simplify right side
    1,217,555.64x = 1,131,736,690,309.81
  5. Step 5: Solve for x
    x = 1,131,736,690,309.81/1,217,555.64
  6. Step 6: Final answer
    x = 929,515.38

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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.