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Finding the Fourth Proportional to 443,273.28, 664,717.64 and 243,533.76

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Solution

The fourth proportional to 443,273.28, 664,717.64 and 243,533.76 is: 365,195.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,273.28 : 664,717.64 = 243,533.76 : x
  2. Step 2: Convert to fraction form
    443,273.28/664,717.64 = 243,533.76/x
  3. Step 3: Cross multiply
    443,273.28x = 664,717.64 × 243,533.76
  4. Step 4: Simplify right side
    443,273.28x = 161,881,186,207.53
  5. Step 5: Solve for x
    x = 161,881,186,207.53/443,273.28
  6. Step 6: Final answer
    x = 365,195.00

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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.