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Finding the Fourth Proportional to 479,413.90, 661,562.67 and 264,574.18

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Solution

The fourth proportional to 479,413.90, 661,562.67 and 264,574.18 is: 365,096.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,413.90 : 661,562.67 = 264,574.18 : x
  2. Step 2: Convert to fraction form
    479,413.90/661,562.67 = 264,574.18/x
  3. Step 3: Cross multiply
    479,413.90x = 661,562.67 × 264,574.18
  4. Step 4: Simplify right side
    479,413.90x = 175,032,400,933.86
  5. Step 5: Solve for x
    x = 175,032,400,933.86/479,413.90
  6. Step 6: Final answer
    x = 365,096.63

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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.