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Finding the Fourth Proportional to 319,704.71, 441,142.20 and 183,712.34

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Solution

The fourth proportional to 319,704.71, 441,142.20 and 183,712.34 is: 253,494.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,704.71 : 441,142.20 = 183,712.34 : x
  2. Step 2: Convert to fraction form
    319,704.71/441,142.20 = 183,712.34/x
  3. Step 3: Cross multiply
    319,704.71x = 441,142.20 × 183,712.34
  4. Step 4: Simplify right side
    319,704.71x = 81,043,263,629.04
  5. Step 5: Solve for x
    x = 81,043,263,629.04/319,704.71
  6. Step 6: Final answer
    x = 253,494.12

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1.5x scale

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.