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Finding the Fourth Proportional to 658,892.58, 988,418.85 and 185,577.94

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Solution

The fourth proportional to 658,892.58, 988,418.85 and 185,577.94 is: 278,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,892.58 : 988,418.85 = 185,577.94 : x
  2. Step 2: Convert to fraction form
    658,892.58/988,418.85 = 185,577.94/x
  3. Step 3: Cross multiply
    658,892.58x = 988,418.85 × 185,577.94
  4. Step 4: Simplify right side
    658,892.58x = 183,428,733,576.22
  5. Step 5: Solve for x
    x = 183,428,733,576.22/658,892.58
  6. Step 6: Final answer
    x = 278,389.44

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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.