Home / 1,291,995.02-1,782,891.89-711,206.19

Finding the Fourth Proportional to 1,291,995.02, 1,782,891.89 and 711,206.19

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Solution

The fourth proportional to 1,291,995.02, 1,782,891.89 and 711,206.19 is: 981,430.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,995.02 : 1,782,891.89 = 711,206.19 : x
  2. Step 2: Convert to fraction form
    1,291,995.02/1,782,891.89 = 711,206.19/x
  3. Step 3: Cross multiply
    1,291,995.02x = 1,782,891.89 × 711,206.19
  4. Step 4: Simplify right side
    1,291,995.02x = 1,268,003,753,640.90
  5. Step 5: Solve for x
    x = 1,268,003,753,640.90/1,291,995.02
  6. Step 6: Final answer
    x = 981,430.83

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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.