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Finding the Fourth Proportional to 447,662.43, 671,541.64 and 191,521.60

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Solution

The fourth proportional to 447,662.43, 671,541.64 and 191,521.60 is: 287,302.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,662.43 : 671,541.64 = 191,521.60 : x
  2. Step 2: Convert to fraction form
    447,662.43/671,541.64 = 191,521.60/x
  3. Step 3: Cross multiply
    447,662.43x = 671,541.64 × 191,521.60
  4. Step 4: Simplify right side
    447,662.43x = 128,614,727,201.77
  5. Step 5: Solve for x
    x = 128,614,727,201.77/447,662.43
  6. Step 6: Final answer
    x = 287,302.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.