Home / 1,229,516.29-1,696,741.46-685,687.15

Finding the Fourth Proportional to 1,229,516.29, 1,696,741.46 and 685,687.15

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Solution

The fourth proportional to 1,229,516.29, 1,696,741.46 and 685,687.15 is: 946,253.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,229,516.29 : 1,696,741.46 = 685,687.15 : x
  2. Step 2: Convert to fraction form
    1,229,516.29/1,696,741.46 = 685,687.15/x
  3. Step 3: Cross multiply
    1,229,516.29x = 1,696,741.46 × 685,687.15
  4. Step 4: Simplify right side
    1,229,516.29x = 1,163,433,815,994.24
  5. Step 5: Solve for x
    x = 1,163,433,815,994.24/1,229,516.29
  6. Step 6: Final answer
    x = 946,253.27

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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.