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Finding the Fourth Proportional to 481,413.40, 664,387.90 and 266,573.45

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Solution

The fourth proportional to 481,413.40, 664,387.90 and 266,573.45 is: 367,892.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,413.40 : 664,387.90 = 266,573.45 : x
  2. Step 2: Convert to fraction form
    481,413.40/664,387.90 = 266,573.45/x
  3. Step 3: Cross multiply
    481,413.40x = 664,387.90 × 266,573.45
  4. Step 4: Simplify right side
    481,413.40x = 177,108,175,635.79
  5. Step 5: Solve for x
    x = 177,108,175,635.79/481,413.40
  6. Step 6: Final answer
    x = 367,892.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.