Home / 1,217,393.30-1,680,540.85-727,535.67

Finding the Fourth Proportional to 1,217,393.30, 1,680,540.85 and 727,535.67

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Solution

The fourth proportional to 1,217,393.30, 1,680,540.85 and 727,535.67 is: 1,004,320.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,393.30 : 1,680,540.85 = 727,535.67 : x
  2. Step 2: Convert to fraction form
    1,217,393.30/1,680,540.85 = 727,535.67/x
  3. Step 3: Cross multiply
    1,217,393.30x = 1,680,540.85 × 727,535.67
  4. Step 4: Simplify right side
    1,217,393.30x = 1,222,653,406,683.25
  5. Step 5: Solve for x
    x = 1,222,653,406,683.25/1,217,393.30
  6. Step 6: Final answer
    x = 1,004,320.80

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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.