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Finding the Fourth Proportional to 609,541.80, 851,259 and 609,541.80

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Solution

The fourth proportional to 609,541.80, 851,259 and 609,541.80 is: 851,259

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,541.80 : 851,259 = 609,541.80 : x
  2. Step 2: Convert to fraction form
    609,541.80/851,259 = 609,541.80/x
  3. Step 3: Cross multiply
    609,541.80x = 851,259 × 609,541.80
  4. Step 4: Simplify right side
    609,541.80x = 518,877,943,126.20
  5. Step 5: Solve for x
    x = 518,877,943,126.20/609,541.80
  6. Step 6: Final answer
    x = 851,259

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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.