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Finding the Fourth Proportional to 398,682.34, 550,184.21 and 237,544.18

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Solution

The fourth proportional to 398,682.34, 550,184.21 and 237,544.18 is: 327,812.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,682.34 : 550,184.21 = 237,544.18 : x
  2. Step 2: Convert to fraction form
    398,682.34/550,184.21 = 237,544.18/x
  3. Step 3: Cross multiply
    398,682.34x = 550,184.21 × 237,544.18
  4. Step 4: Simplify right side
    398,682.34x = 130,693,057,013.40
  5. Step 5: Solve for x
    x = 130,693,057,013.40/398,682.34
  6. Step 6: Final answer
    x = 327,812.51

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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.