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Finding the Fourth Proportional to 379,665.02, 524,361.40 and 294,652.82

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Solution

The fourth proportional to 379,665.02, 524,361.40 and 294,652.82 is: 406,949.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,665.02 : 524,361.40 = 294,652.82 : x
  2. Step 2: Convert to fraction form
    379,665.02/524,361.40 = 294,652.82/x
  3. Step 3: Cross multiply
    379,665.02x = 524,361.40 × 294,652.82
  4. Step 4: Simplify right side
    379,665.02x = 154,504,565,209.15
  5. Step 5: Solve for x
    x = 154,504,565,209.15/379,665.02
  6. Step 6: Final answer
    x = 406,949.70

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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.