Home / 317,976.10-438,711.33-190,605.22

Finding the Fourth Proportional to 317,976.10, 438,711.33 and 190,605.22

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Solution

The fourth proportional to 317,976.10, 438,711.33 and 190,605.22 is: 262,977.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,976.10 : 438,711.33 = 190,605.22 : x
  2. Step 2: Convert to fraction form
    317,976.10/438,711.33 = 190,605.22/x
  3. Step 3: Cross multiply
    317,976.10x = 438,711.33 × 190,605.22
  4. Step 4: Simplify right side
    317,976.10x = 83,620,669,571.14
  5. Step 5: Solve for x
    x = 83,620,669,571.14/317,976.10
  6. Step 6: Final answer
    x = 262,977.85

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1.5x scale

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.