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Finding the Fourth Proportional to 443,736.64, 665,407.68 and 275,250.16

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Solution

The fourth proportional to 443,736.64, 665,407.68 and 275,250.16 is: 412,752.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,736.64 : 665,407.68 = 275,250.16 : x
  2. Step 2: Convert to fraction form
    443,736.64/665,407.68 = 275,250.16/x
  3. Step 3: Cross multiply
    443,736.64x = 665,407.68 × 275,250.16
  4. Step 4: Simplify right side
    443,736.64x = 183,153,570,385.23
  5. Step 5: Solve for x
    x = 183,153,570,385.23/443,736.64
  6. Step 6: Final answer
    x = 412,752.87

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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.