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Finding the Fourth Proportional to 1,315,546.24, 1,815,453.82 and 711,934.24

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Solution

The fourth proportional to 1,315,546.24, 1,815,453.82 and 711,934.24 is: 982,469.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,546.24 : 1,815,453.82 = 711,934.24 : x
  2. Step 2: Convert to fraction form
    1,315,546.24/1,815,453.82 = 711,934.24/x
  3. Step 3: Cross multiply
    1,315,546.24x = 1,815,453.82 × 711,934.24
  4. Step 4: Simplify right side
    1,315,546.24x = 1,292,483,735,596.80
  5. Step 5: Solve for x
    x = 1,292,483,735,596.80/1,315,546.24
  6. Step 6: Final answer
    x = 982,469.26

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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.