Home / 1,189,634.93-1,641,698.29-645,771.09

Finding the Fourth Proportional to 1,189,634.93, 1,641,698.29 and 645,771.09

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Solution

The fourth proportional to 1,189,634.93, 1,641,698.29 and 645,771.09 is: 891,165.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,634.93 : 1,641,698.29 = 645,771.09 : x
  2. Step 2: Convert to fraction form
    1,189,634.93/1,641,698.29 = 645,771.09/x
  3. Step 3: Cross multiply
    1,189,634.93x = 1,641,698.29 × 645,771.09
  4. Step 4: Simplify right side
    1,189,634.93x = 1,060,161,294,991.65
  5. Step 5: Solve for x
    x = 1,060,161,294,991.65/1,189,634.93
  6. Step 6: Final answer
    x = 891,165.24

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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.