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Finding the Fourth Proportional to 551,405.90, 773,542.90 and 551,405.90

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Solution

The fourth proportional to 551,405.90, 773,542.90 and 551,405.90 is: 773,542.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,405.90 : 773,542.90 = 551,405.90 : x
  2. Step 2: Convert to fraction form
    551,405.90/773,542.90 = 551,405.90/x
  3. Step 3: Cross multiply
    551,405.90x = 773,542.90 × 551,405.90
  4. Step 4: Simplify right side
    551,405.90x = 426,536,118,963.11
  5. Step 5: Solve for x
    x = 426,536,118,963.11/551,405.90
  6. Step 6: Final answer
    x = 773,542.90

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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.