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Finding the Fourth Proportional to 365,664.33, 504,413.67 and 212,685.30

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Solution

The fourth proportional to 365,664.33, 504,413.67 and 212,685.30 is: 293,387.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,664.33 : 504,413.67 = 212,685.30 : x
  2. Step 2: Convert to fraction form
    365,664.33/504,413.67 = 212,685.30/x
  3. Step 3: Cross multiply
    365,664.33x = 504,413.67 × 212,685.30
  4. Step 4: Simplify right side
    365,664.33x = 107,281,372,728.05
  5. Step 5: Solve for x
    x = 107,281,372,728.05/365,664.33
  6. Step 6: Final answer
    x = 293,387.58

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1.5x scale

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.