Home / 1,640,815.20-2,462,605.20-800,085.60

Finding the Fourth Proportional to 1,640,815.20, 2,462,605.20 and 800,085.60

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Solution

The fourth proportional to 1,640,815.20, 2,462,605.20 and 800,085.60 is: 1,200,802.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,815.20 : 2,462,605.20 = 800,085.60 : x
  2. Step 2: Convert to fraction form
    1,640,815.20/2,462,605.20 = 800,085.60/x
  3. Step 3: Cross multiply
    1,640,815.20x = 2,462,605.20 × 800,085.60
  4. Step 4: Simplify right side
    1,640,815.20x = 1,970,294,959,005.12
  5. Step 5: Solve for x
    x = 1,970,294,959,005.12/1,640,815.20
  6. Step 6: Final answer
    x = 1,200,802.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.