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Finding the Fourth Proportional to 609,546.80, 851,266 and 609,546.80

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Solution

The fourth proportional to 609,546.80, 851,266 and 609,546.80 is: 851,266

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,546.80 : 851,266 = 609,546.80 : x
  2. Step 2: Convert to fraction form
    609,546.80/851,266 = 609,546.80/x
  3. Step 3: Cross multiply
    609,546.80x = 851,266 × 609,546.80
  4. Step 4: Simplify right side
    609,546.80x = 518,886,466,248.80
  5. Step 5: Solve for x
    x = 518,886,466,248.80/609,546.80
  6. Step 6: Final answer
    x = 851,266

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.