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Finding the Fourth Proportional to 551,448.10, 770,452.70 and 551,448.10

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Solution

The fourth proportional to 551,448.10, 770,452.70 and 551,448.10 is: 770,452.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,448.10 : 770,452.70 = 551,448.10 : x
  2. Step 2: Convert to fraction form
    551,448.10/770,452.70 = 551,448.10/x
  3. Step 3: Cross multiply
    551,448.10x = 770,452.70 × 551,448.10
  4. Step 4: Simplify right side
    551,448.10x = 424,864,677,554.87
  5. Step 5: Solve for x
    x = 424,864,677,554.87/551,448.10
  6. Step 6: Final answer
    x = 770,452.70

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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.