Home / 1,189,376.46-1,641,351.33-645,517.08

Finding the Fourth Proportional to 1,189,376.46, 1,641,351.33 and 645,517.08

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Solution

The fourth proportional to 1,189,376.46, 1,641,351.33 and 645,517.08 is: 890,819.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,376.46 : 1,641,351.33 = 645,517.08 : x
  2. Step 2: Convert to fraction form
    1,189,376.46/1,641,351.33 = 645,517.08/x
  3. Step 3: Cross multiply
    1,189,376.46x = 1,641,351.33 × 645,517.08
  4. Step 4: Simplify right side
    1,189,376.46x = 1,059,520,317,795.72
  5. Step 5: Solve for x
    x = 1,059,520,317,795.72/1,189,376.46
  6. Step 6: Final answer
    x = 890,819.98

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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.