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Finding the Fourth Proportional to 443,302.80, 665,371.80 and 233,091.60

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Solution

The fourth proportional to 443,302.80, 665,371.80 and 233,091.60 is: 349,856.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,302.80 : 665,371.80 = 233,091.60 : x
  2. Step 2: Convert to fraction form
    443,302.80/665,371.80 = 233,091.60/x
  3. Step 3: Cross multiply
    443,302.80x = 665,371.80 × 233,091.60
  4. Step 4: Simplify right side
    443,302.80x = 155,092,577,456.88
  5. Step 5: Solve for x
    x = 155,092,577,456.88/443,302.80
  6. Step 6: Final answer
    x = 349,856.98

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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.