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Finding the Fourth Proportional to 366,915.78, 550,373.67 and 366,915.78

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Solution

The fourth proportional to 366,915.78, 550,373.67 and 366,915.78 is: 550,373.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,915.78 : 550,373.67 = 366,915.78 : x
  2. Step 2: Convert to fraction form
    366,915.78/550,373.67 = 366,915.78/x
  3. Step 3: Cross multiply
    366,915.78x = 550,373.67 × 366,915.78
  4. Step 4: Simplify right side
    366,915.78x = 201,940,784,419.51
  5. Step 5: Solve for x
    x = 201,940,784,419.51/366,915.78
  6. Step 6: Final answer
    x = 550,373.67

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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.