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Finding the Fourth Proportional to 446,903.64, 670,213.32 and 147,328.38

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Solution

The fourth proportional to 446,903.64, 670,213.32 and 147,328.38 is: 220,945.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,903.64 : 670,213.32 = 147,328.38 : x
  2. Step 2: Convert to fraction form
    446,903.64/670,213.32 = 147,328.38/x
  3. Step 3: Cross multiply
    446,903.64x = 670,213.32 × 147,328.38
  4. Step 4: Simplify right side
    446,903.64x = 98,741,442,690.02
  5. Step 5: Solve for x
    x = 98,741,442,690.02/446,903.64
  6. Step 6: Final answer
    x = 220,945.71

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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.