Home / 689,660.73-951,589.22-403,125.39

Finding the Fourth Proportional to 689,660.73, 951,589.22 and 403,125.39

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Solution

The fourth proportional to 689,660.73, 951,589.22 and 403,125.39 is: 556,229.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,660.73 : 951,589.22 = 403,125.39 : x
  2. Step 2: Convert to fraction form
    689,660.73/951,589.22 = 403,125.39/x
  3. Step 3: Cross multiply
    689,660.73x = 951,589.22 × 403,125.39
  4. Step 4: Simplify right side
    689,660.73x = 383,609,773,416.67
  5. Step 5: Solve for x
    x = 383,609,773,416.67/689,660.73
  6. Step 6: Final answer
    x = 556,229.69

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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.