Home / 1,189,539.82-1,641,566.42-645,675.58

Finding the Fourth Proportional to 1,189,539.82, 1,641,566.42 and 645,675.58

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Solution

The fourth proportional to 1,189,539.82, 1,641,566.42 and 645,675.58 is: 891,033.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,539.82 : 1,641,566.42 = 645,675.58 : x
  2. Step 2: Convert to fraction form
    1,189,539.82/1,641,566.42 = 645,675.58/x
  3. Step 3: Cross multiply
    1,189,539.82x = 1,641,566.42 × 645,675.58
  4. Step 4: Simplify right side
    1,189,539.82x = 1,059,919,350,342.02
  5. Step 5: Solve for x
    x = 1,059,919,350,342.02/1,189,539.82
  6. Step 6: Final answer
    x = 891,033.10

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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.