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Finding the Fourth Proportional to 448,370.64, 618,750.92 and 247,170

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Solution

The fourth proportional to 448,370.64, 618,750.92 and 247,170 is: 341,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,370.64 : 618,750.92 = 247,170 : x
  2. Step 2: Convert to fraction form
    448,370.64/618,750.92 = 247,170/x
  3. Step 3: Cross multiply
    448,370.64x = 618,750.92 × 247,170
  4. Step 4: Simplify right side
    448,370.64x = 152,936,664,896.40
  5. Step 5: Solve for x
    x = 152,936,664,896.40/448,370.64
  6. Step 6: Final answer
    x = 341,094.29

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Why These Related Problems?

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