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Finding the Fourth Proportional to 398,522.40, 597,943.80 and 161,883.60

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Solution

The fourth proportional to 398,522.40, 597,943.80 and 161,883.60 is: 242,890.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,522.40 : 597,943.80 = 161,883.60 : x
  2. Step 2: Convert to fraction form
    398,522.40/597,943.80 = 161,883.60/x
  3. Step 3: Cross multiply
    398,522.40x = 597,943.80 × 161,883.60
  4. Step 4: Simplify right side
    398,522.40x = 96,797,294,941.68
  5. Step 5: Solve for x
    x = 96,797,294,941.68/398,522.40
  6. Step 6: Final answer
    x = 242,890.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.