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Finding the Fourth Proportional to 483,258.29, 666,969.21 and 347,740.84

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Solution

The fourth proportional to 483,258.29, 666,969.21 and 347,740.84 is: 479,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,258.29 : 666,969.21 = 347,740.84 : x
  2. Step 2: Convert to fraction form
    483,258.29/666,969.21 = 347,740.84/x
  3. Step 3: Cross multiply
    483,258.29x = 666,969.21 × 347,740.84
  4. Step 4: Simplify right side
    483,258.29x = 231,932,431,672.11
  5. Step 5: Solve for x
    x = 231,932,431,672.11/483,258.29
  6. Step 6: Final answer
    x = 479,934.72

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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.