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Finding the Fourth Proportional to 355,300.16, 490,314.08 and 196,324.16

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Solution

The fourth proportional to 355,300.16, 490,314.08 and 196,324.16 is: 270,927.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,300.16 : 490,314.08 = 196,324.16 : x
  2. Step 2: Convert to fraction form
    355,300.16/490,314.08 = 196,324.16/x
  3. Step 3: Cross multiply
    355,300.16x = 490,314.08 × 196,324.16
  4. Step 4: Simplify right side
    355,300.16x = 96,260,499,892.17
  5. Step 5: Solve for x
    x = 96,260,499,892.17/355,300.16
  6. Step 6: Final answer
    x = 270,927.26

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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.