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Finding the Fourth Proportional to 573,190.30, 789,635.49 and 400,785.67

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Solution

The fourth proportional to 573,190.30, 789,635.49 and 400,785.67 is: 552,128.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,190.30 : 789,635.49 = 400,785.67 : x
  2. Step 2: Convert to fraction form
    573,190.30/789,635.49 = 400,785.67/x
  3. Step 3: Cross multiply
    573,190.30x = 789,635.49 × 400,785.67
  4. Step 4: Simplify right side
    573,190.30x = 316,474,588,915.43
  5. Step 5: Solve for x
    x = 316,474,588,915.43/573,190.30
  6. Step 6: Final answer
    x = 552,128.31

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.