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Finding the Fourth Proportional to 692,708.52, 955,954.00 and 386,774.56

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Solution

The fourth proportional to 692,708.52, 955,954.00 and 386,774.56 is: 533,757.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,708.52 : 955,954.00 = 386,774.56 : x
  2. Step 2: Convert to fraction form
    692,708.52/955,954.00 = 386,774.56/x
  3. Step 3: Cross multiply
    692,708.52x = 955,954.00 × 386,774.56
  4. Step 4: Simplify right side
    692,708.52x = 369,738,689,408.65
  5. Step 5: Solve for x
    x = 369,738,689,408.65/692,708.52
  6. Step 6: Final answer
    x = 533,757.96

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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.