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Finding the Fourth Proportional to 393,374.40, 590,304.60 and 156,692.40

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Solution

The fourth proportional to 393,374.40, 590,304.60 and 156,692.40 is: 235,135.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,374.40 : 590,304.60 = 156,692.40 : x
  2. Step 2: Convert to fraction form
    393,374.40/590,304.60 = 156,692.40/x
  3. Step 3: Cross multiply
    393,374.40x = 590,304.60 × 156,692.40
  4. Step 4: Simplify right side
    393,374.40x = 92,496,244,505.04
  5. Step 5: Solve for x
    x = 92,496,244,505.04/393,374.40
  6. Step 6: Final answer
    x = 235,135.39

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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.