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Finding the Fourth Proportional to 448,373.64, 618,755.06 and 247,173

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Solution

The fourth proportional to 448,373.64, 618,755.06 and 247,173 is: 341,098.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,373.64 : 618,755.06 = 247,173 : x
  2. Step 2: Convert to fraction form
    448,373.64/618,755.06 = 247,173/x
  3. Step 3: Cross multiply
    448,373.64x = 618,755.06 × 247,173
  4. Step 4: Simplify right side
    448,373.64x = 152,939,544,445.38
  5. Step 5: Solve for x
    x = 152,939,544,445.38/448,373.64
  6. Step 6: Final answer
    x = 341,098.43

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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.