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Finding the Fourth Proportional to 567,415.20, 851,065.20 and 193,432.80

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Solution

The fourth proportional to 567,415.20, 851,065.20 and 193,432.80 is: 290,129.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,415.20 : 851,065.20 = 193,432.80 : x
  2. Step 2: Convert to fraction form
    567,415.20/851,065.20 = 193,432.80/x
  3. Step 3: Cross multiply
    567,415.20x = 851,065.20 × 193,432.80
  4. Step 4: Simplify right side
    567,415.20x = 164,623,924,618.56
  5. Step 5: Solve for x
    x = 164,623,924,618.56/567,415.20
  6. Step 6: Final answer
    x = 290,129.56

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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.