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Finding the Fourth Proportional to 443,356.80, 665,452.80 and 233,145.60

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Solution

The fourth proportional to 443,356.80, 665,452.80 and 233,145.60 is: 349,938.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,356.80 : 665,452.80 = 233,145.60 : x
  2. Step 2: Convert to fraction form
    443,356.80/665,452.80 = 233,145.60/x
  3. Step 3: Cross multiply
    443,356.80x = 665,452.80 × 233,145.60
  4. Step 4: Simplify right side
    443,356.80x = 155,147,392,327.68
  5. Step 5: Solve for x
    x = 155,147,392,327.68/443,356.80
  6. Step 6: Final answer
    x = 349,938.00

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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.