Home / 1,292,696.37-1,783,920.78-719,871.66

Finding the Fourth Proportional to 1,292,696.37, 1,783,920.78 and 719,871.66

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Solution

The fourth proportional to 1,292,696.37, 1,783,920.78 and 719,871.66 is: 993,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,696.37 : 1,783,920.78 = 719,871.66 : x
  2. Step 2: Convert to fraction form
    1,292,696.37/1,783,920.78 = 719,871.66/x
  3. Step 3: Cross multiply
    1,292,696.37x = 1,783,920.78 × 719,871.66
  4. Step 4: Simplify right side
    1,292,696.37x = 1,284,194,013,207.10
  5. Step 5: Solve for x
    x = 1,284,194,013,207.10/1,292,696.37
  6. Step 6: Final answer
    x = 993,422.77

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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.