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Finding the Fourth Proportional to 446,613.81, 669,544.16 and 193,703.90

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Solution

The fourth proportional to 446,613.81, 669,544.16 and 193,703.90 is: 290,392.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,613.81 : 669,544.16 = 193,703.90 : x
  2. Step 2: Convert to fraction form
    446,613.81/669,544.16 = 193,703.90/x
  3. Step 3: Cross multiply
    446,613.81x = 669,544.16 × 193,703.90
  4. Step 4: Simplify right side
    446,613.81x = 129,693,310,697.98
  5. Step 5: Solve for x
    x = 129,693,310,697.98/446,613.81
  6. Step 6: Final answer
    x = 290,392.52

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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.