Home / 317,647.76-438,559.04-196,918.07

Finding the Fourth Proportional to 317,647.76, 438,559.04 and 196,918.07

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Solution

The fourth proportional to 317,647.76, 438,559.04 and 196,918.07 is: 271,874.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,647.76 : 438,559.04 = 196,918.07 : x
  2. Step 2: Convert to fraction form
    317,647.76/438,559.04 = 196,918.07/x
  3. Step 3: Cross multiply
    317,647.76x = 438,559.04 × 196,918.07
  4. Step 4: Simplify right side
    317,647.76x = 86,360,198,037.35
  5. Step 5: Solve for x
    x = 86,360,198,037.35/317,647.76
  6. Step 6: Final answer
    x = 271,874.10

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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.