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Finding the Fourth Proportional to 352,361.48, 486,226.74 and 209,096.84

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Solution

The fourth proportional to 352,361.48, 486,226.74 and 209,096.84 is: 288,534.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,361.48 : 486,226.74 = 209,096.84 : x
  2. Step 2: Convert to fraction form
    352,361.48/486,226.74 = 209,096.84/x
  3. Step 3: Cross multiply
    352,361.48x = 486,226.74 × 209,096.84
  4. Step 4: Simplify right side
    352,361.48x = 101,668,474,857.50
  5. Step 5: Solve for x
    x = 101,668,474,857.50/352,361.48
  6. Step 6: Final answer
    x = 288,534.59

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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.