Home / 1,640,789.41-2,461,184.11-442,711.72

Finding the Fourth Proportional to 1,640,789.41, 2,461,184.11 and 442,711.72

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Solution

The fourth proportional to 1,640,789.41, 2,461,184.11 and 442,711.72 is: 664,067.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,789.41 : 2,461,184.11 = 442,711.72 : x
  2. Step 2: Convert to fraction form
    1,640,789.41/2,461,184.11 = 442,711.72/x
  3. Step 3: Cross multiply
    1,640,789.41x = 2,461,184.11 × 442,711.72
  4. Step 4: Simplify right side
    1,640,789.41x = 1,089,595,050,574.77
  5. Step 5: Solve for x
    x = 1,089,595,050,574.77/1,640,789.41
  6. Step 6: Final answer
    x = 664,067.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.