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Finding the Fourth Proportional to 609,543.80, 851,261.80 and 609,543.80

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Solution

The fourth proportional to 609,543.80, 851,261.80 and 609,543.80 is: 851,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,543.80 : 851,261.80 = 609,543.80 : x
  2. Step 2: Convert to fraction form
    609,543.80/851,261.80 = 609,543.80/x
  3. Step 3: Cross multiply
    609,543.80x = 851,261.80 × 609,543.80
  4. Step 4: Simplify right side
    609,543.80x = 518,881,352,366.84
  5. Step 5: Solve for x
    x = 518,881,352,366.84/609,543.80
  6. Step 6: Final answer
    x = 851,261.80

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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.