Home / 1,292,686.38-1,783,919.50-719,738.85

Finding the Fourth Proportional to 1,292,686.38, 1,783,919.50 and 719,738.85

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Solution

The fourth proportional to 1,292,686.38, 1,783,919.50 and 719,738.85 is: 993,246.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,686.38 : 1,783,919.50 = 719,738.85 : x
  2. Step 2: Convert to fraction form
    1,292,686.38/1,783,919.50 = 719,738.85/x
  3. Step 3: Cross multiply
    1,292,686.38x = 1,783,919.50 × 719,738.85
  4. Step 4: Simplify right side
    1,292,686.38x = 1,283,956,169,422.58
  5. Step 5: Solve for x
    x = 1,283,956,169,422.58/1,292,686.38
  6. Step 6: Final answer
    x = 993,246.46

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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.