Home / 317,640.88-438,549.56-196,911.19

Finding the Fourth Proportional to 317,640.88, 438,549.56 and 196,911.19

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Solution

The fourth proportional to 317,640.88, 438,549.56 and 196,911.19 is: 271,864.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,640.88 : 438,549.56 = 196,911.19 : x
  2. Step 2: Convert to fraction form
    317,640.88/438,549.56 = 196,911.19/x
  3. Step 3: Cross multiply
    317,640.88x = 438,549.56 × 196,911.19
  4. Step 4: Simplify right side
    317,640.88x = 86,355,315,733.58
  5. Step 5: Solve for x
    x = 86,355,315,733.58/317,640.88
  6. Step 6: Final answer
    x = 271,864.62

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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.