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Finding the Fourth Proportional to 689,083.52, 951,014 and 383,190.40

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Solution

The fourth proportional to 689,083.52, 951,014 and 383,190.40 is: 528,846.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,083.52 : 951,014 = 383,190.40 : x
  2. Step 2: Convert to fraction form
    689,083.52/951,014 = 383,190.40/x
  3. Step 3: Cross multiply
    689,083.52x = 951,014 × 383,190.40
  4. Step 4: Simplify right side
    689,083.52x = 364,419,435,065.60
  5. Step 5: Solve for x
    x = 364,419,435,065.60/689,083.52
  6. Step 6: Final answer
    x = 528,846.54

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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.