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Finding the Fourth Proportional to 647,598.40, 970,936.80 and 248,084.80

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Solution

The fourth proportional to 647,598.40, 970,936.80 and 248,084.80 is: 371,950.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,598.40 : 970,936.80 = 248,084.80 : x
  2. Step 2: Convert to fraction form
    647,598.40/970,936.80 = 248,084.80/x
  3. Step 3: Cross multiply
    647,598.40x = 970,936.80 × 248,084.80
  4. Step 4: Simplify right side
    647,598.40x = 240,874,661,840.64
  5. Step 5: Solve for x
    x = 240,874,661,840.64/647,598.40
  6. Step 6: Final answer
    x = 371,950.67

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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.