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Finding the Fourth Proportional to 443,364.30, 665,046.45 and 303,396.30

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Solution

The fourth proportional to 443,364.30, 665,046.45 and 303,396.30 is: 455,094.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,364.30 : 665,046.45 = 303,396.30 : x
  2. Step 2: Convert to fraction form
    443,364.30/665,046.45 = 303,396.30/x
  3. Step 3: Cross multiply
    443,364.30x = 665,046.45 × 303,396.30
  4. Step 4: Simplify right side
    443,364.30x = 201,772,632,258.14
  5. Step 5: Solve for x
    x = 201,772,632,258.14/443,364.30
  6. Step 6: Final answer
    x = 455,094.45

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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.