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Finding the Fourth Proportional to 363,704.69, 501,912.62 and 210,831.55

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Solution

The fourth proportional to 363,704.69, 501,912.62 and 210,831.55 is: 290,947.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,704.69 : 501,912.62 = 210,831.55 : x
  2. Step 2: Convert to fraction form
    363,704.69/501,912.62 = 210,831.55/x
  3. Step 3: Cross multiply
    363,704.69x = 501,912.62 × 210,831.55
  4. Step 4: Simplify right side
    363,704.69x = 105,819,015,639.16
  5. Step 5: Solve for x
    x = 105,819,015,639.16/363,704.69
  6. Step 6: Final answer
    x = 290,947.62

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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.