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Finding the Fourth Proportional to 365,432.20, 548,148.30 and 207,968.20

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Solution

The fourth proportional to 365,432.20, 548,148.30 and 207,968.20 is: 311,952.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,432.20 : 548,148.30 = 207,968.20 : x
  2. Step 2: Convert to fraction form
    365,432.20/548,148.30 = 207,968.20/x
  3. Step 3: Cross multiply
    365,432.20x = 548,148.30 × 207,968.20
  4. Step 4: Simplify right side
    365,432.20x = 113,997,415,284.06
  5. Step 5: Solve for x
    x = 113,997,415,284.06/365,432.20
  6. Step 6: Final answer
    x = 311,952.30

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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.