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Finding the Fourth Proportional to 463,197.60, 639,370.32 and 272,267.64

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Solution

The fourth proportional to 463,197.60, 639,370.32 and 272,267.64 is: 375,822.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,197.60 : 639,370.32 = 272,267.64 : x
  2. Step 2: Convert to fraction form
    463,197.60/639,370.32 = 272,267.64/x
  3. Step 3: Cross multiply
    463,197.60x = 639,370.32 × 272,267.64
  4. Step 4: Simplify right side
    463,197.60x = 174,079,848,112.45
  5. Step 5: Solve for x
    x = 174,079,848,112.45/463,197.60
  6. Step 6: Final answer
    x = 375,822.00

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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.