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Finding the Fourth Proportional to 615,745.20, 923,617.80 and 573,754.80

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Solution

The fourth proportional to 615,745.20, 923,617.80 and 573,754.80 is: 860,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,745.20 : 923,617.80 = 573,754.80 : x
  2. Step 2: Convert to fraction form
    615,745.20/923,617.80 = 573,754.80/x
  3. Step 3: Cross multiply
    615,745.20x = 923,617.80 × 573,754.80
  4. Step 4: Simplify right side
    615,745.20x = 529,930,146,115.44
  5. Step 5: Solve for x
    x = 529,930,146,115.44/615,745.20
  6. Step 6: Final answer
    x = 860,632.20

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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.