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Finding the Fourth Proportional to 477,187.65, 715,256.60 and 196,551.81

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Solution

The fourth proportional to 477,187.65, 715,256.60 and 196,551.81 is: 294,611.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,187.65 : 715,256.60 = 196,551.81 : x
  2. Step 2: Convert to fraction form
    477,187.65/715,256.60 = 196,551.81/x
  3. Step 3: Cross multiply
    477,187.65x = 715,256.60 × 196,551.81
  4. Step 4: Simplify right side
    477,187.65x = 140,584,978,361.69
  5. Step 5: Solve for x
    x = 140,584,978,361.69/477,187.65
  6. Step 6: Final answer
    x = 294,611.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.