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Finding the Fourth Proportional to 551,449.60, 773,079.20 and 551,449.60

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Solution

The fourth proportional to 551,449.60, 773,079.20 and 551,449.60 is: 773,079.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,449.60 : 773,079.20 = 551,449.60 : x
  2. Step 2: Convert to fraction form
    551,449.60/773,079.20 = 551,449.60/x
  3. Step 3: Cross multiply
    551,449.60x = 773,079.20 × 551,449.60
  4. Step 4: Simplify right side
    551,449.60x = 426,314,215,608.32
  5. Step 5: Solve for x
    x = 426,314,215,608.32/551,449.60
  6. Step 6: Final answer
    x = 773,079.20

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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.