Home / 1,191,991.65-1,644,969.03-648,131.13

Finding the Fourth Proportional to 1,191,991.65, 1,644,969.03 and 648,131.13

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Solution

The fourth proportional to 1,191,991.65, 1,644,969.03 and 648,131.13 is: 894,432.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,991.65 : 1,644,969.03 = 648,131.13 : x
  2. Step 2: Convert to fraction form
    1,191,991.65/1,644,969.03 = 648,131.13/x
  3. Step 3: Cross multiply
    1,191,991.65x = 1,644,969.03 × 648,131.13
  4. Step 4: Simplify right side
    1,191,991.65x = 1,066,155,636,228.90
  5. Step 5: Solve for x
    x = 1,066,155,636,228.90/1,191,991.65
  6. Step 6: Final answer
    x = 894,432.13

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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.