Home / 1,189,416.20-1,641,352.61-645,541.04

Finding the Fourth Proportional to 1,189,416.20, 1,641,352.61 and 645,541.04

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Solution

The fourth proportional to 1,189,416.20, 1,641,352.61 and 645,541.04 is: 890,823.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,416.20 : 1,641,352.61 = 645,541.04 : x
  2. Step 2: Convert to fraction form
    1,189,416.20/1,641,352.61 = 645,541.04/x
  3. Step 3: Cross multiply
    1,189,416.20x = 1,641,352.61 × 645,541.04
  4. Step 4: Simplify right side
    1,189,416.20x = 1,059,560,476,583.35
  5. Step 5: Solve for x
    x = 1,059,560,476,583.35/1,189,416.20
  6. Step 6: Final answer
    x = 890,823.98

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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.