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Finding the Fourth Proportional to 397,270.40, 595,905.60 and 239,417.60

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Solution

The fourth proportional to 397,270.40, 595,905.60 and 239,417.60 is: 359,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,270.40 : 595,905.60 = 239,417.60 : x
  2. Step 2: Convert to fraction form
    397,270.40/595,905.60 = 239,417.60/x
  3. Step 3: Cross multiply
    397,270.40x = 595,905.60 × 239,417.60
  4. Step 4: Simplify right side
    397,270.40x = 142,670,288,578.56
  5. Step 5: Solve for x
    x = 142,670,288,578.56/397,270.40
  6. Step 6: Final answer
    x = 359,126.40

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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.