Home / 1,189,228.00-1,641,135.69-645,363.79

Finding the Fourth Proportional to 1,189,228.00, 1,641,135.69 and 645,363.79

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Solution

The fourth proportional to 1,189,228.00, 1,641,135.69 and 645,363.79 is: 890,602.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,228.00 : 1,641,135.69 = 645,363.79 : x
  2. Step 2: Convert to fraction form
    1,189,228.00/1,641,135.69 = 645,363.79/x
  3. Step 3: Cross multiply
    1,189,228.00x = 1,641,135.69 × 645,363.79
  4. Step 4: Simplify right side
    1,189,228.00x = 1,059,129,555,746.30
  5. Step 5: Solve for x
    x = 1,059,129,555,746.30/1,189,228.00
  6. Step 6: Final answer
    x = 890,602.61

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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.