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Finding the Fourth Proportional to 648,164.20, 971,954.70 and 248,672.20

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Solution

The fourth proportional to 648,164.20, 971,954.70 and 248,672.20 is: 372,896.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,164.20 : 971,954.70 = 248,672.20 : x
  2. Step 2: Convert to fraction form
    648,164.20/971,954.70 = 248,672.20/x
  3. Step 3: Cross multiply
    648,164.20x = 971,954.70 × 248,672.20
  4. Step 4: Simplify right side
    648,164.20x = 241,698,113,549.34
  5. Step 5: Solve for x
    x = 241,698,113,549.34/648,164.20
  6. Step 6: Final answer
    x = 372,896.43

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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.