Home / 1,291,976.50-1,782,910.16-719,016.52

Finding the Fourth Proportional to 1,291,976.50, 1,782,910.16 and 719,016.52

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Solution

The fourth proportional to 1,291,976.50, 1,782,910.16 and 719,016.52 is: 992,233.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,976.50 : 1,782,910.16 = 719,016.52 : x
  2. Step 2: Convert to fraction form
    1,291,976.50/1,782,910.16 = 719,016.52/x
  3. Step 3: Cross multiply
    1,291,976.50x = 1,782,910.16 × 719,016.52
  4. Step 4: Simplify right side
    1,291,976.50x = 1,281,941,855,120.76
  5. Step 5: Solve for x
    x = 1,281,941,855,120.76/1,291,976.50
  6. Step 6: Final answer
    x = 992,233.11

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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.