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Finding the Fourth Proportional to 365,538.20, 548,307.30 and 155,148.80

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Solution

The fourth proportional to 365,538.20, 548,307.30 and 155,148.80 is: 232,723.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,538.20 : 548,307.30 = 155,148.80 : x
  2. Step 2: Convert to fraction form
    365,538.20/548,307.30 = 155,148.80/x
  3. Step 3: Cross multiply
    365,538.20x = 548,307.30 × 155,148.80
  4. Step 4: Simplify right side
    365,538.20x = 85,069,219,626.24
  5. Step 5: Solve for x
    x = 85,069,219,626.24/365,538.20
  6. Step 6: Final answer
    x = 232,723.20

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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.