Home / 1,189,432.62-1,641,417.83-645,568.42

Finding the Fourth Proportional to 1,189,432.62, 1,641,417.83 and 645,568.42

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Solution

The fourth proportional to 1,189,432.62, 1,641,417.83 and 645,568.42 is: 890,884.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,432.62 : 1,641,417.83 = 645,568.42 : x
  2. Step 2: Convert to fraction form
    1,189,432.62/1,641,417.83 = 645,568.42/x
  3. Step 3: Cross multiply
    1,189,432.62x = 1,641,417.83 × 645,568.42
  4. Step 4: Simplify right side
    1,189,432.62x = 1,059,647,515,072.93
  5. Step 5: Solve for x
    x = 1,059,647,515,072.93/1,189,432.62
  6. Step 6: Final answer
    x = 890,884.86

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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.