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Finding the Fourth Proportional to 357,692.40, 536,344.20 and 120,913.20

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Solution

The fourth proportional to 357,692.40, 536,344.20 and 120,913.20 is: 181,304.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,692.40 : 536,344.20 = 120,913.20 : x
  2. Step 2: Convert to fraction form
    357,692.40/536,344.20 = 120,913.20/x
  3. Step 3: Cross multiply
    357,692.40x = 536,344.20 × 120,913.20
  4. Step 4: Simplify right side
    357,692.40x = 64,851,093,523.44
  5. Step 5: Solve for x
    x = 64,851,093,523.44/357,692.40
  6. Step 6: Final answer
    x = 181,304.09

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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.