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Finding the Fourth Proportional to 692,992, 1,039,488 and 167,680

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Solution

The fourth proportional to 692,992, 1,039,488 and 167,680 is: 251,520

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,992 : 1,039,488 = 167,680 : x
  2. Step 2: Convert to fraction form
    692,992/1,039,488 = 167,680/x
  3. Step 3: Cross multiply
    692,992x = 1,039,488 × 167,680
  4. Step 4: Simplify right side
    692,992x = 174,301,347,840
  5. Step 5: Solve for x
    x = 174,301,347,840/692,992
  6. Step 6: Final answer
    x = 251,520

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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.