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Finding the Fourth Proportional to 474,505.40, 711,758.10 and 443,401.40

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Solution

The fourth proportional to 474,505.40, 711,758.10 and 443,401.40 is: 665,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,505.40 : 711,758.10 = 443,401.40 : x
  2. Step 2: Convert to fraction form
    474,505.40/711,758.10 = 443,401.40/x
  3. Step 3: Cross multiply
    474,505.40x = 711,758.10 × 443,401.40
  4. Step 4: Simplify right side
    474,505.40x = 315,594,538,001.34
  5. Step 5: Solve for x
    x = 315,594,538,001.34/474,505.40
  6. Step 6: Final answer
    x = 665,102.10

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.