Home / 689,573.50-951,620.19-379,511.79

Finding the Fourth Proportional to 689,573.50, 951,620.19 and 379,511.79

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Solution

The fourth proportional to 689,573.50, 951,620.19 and 379,511.79 is: 523,731.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,573.50 : 951,620.19 = 379,511.79 : x
  2. Step 2: Convert to fraction form
    689,573.50/951,620.19 = 379,511.79/x
  3. Step 3: Cross multiply
    689,573.50x = 951,620.19 × 379,511.79
  4. Step 4: Simplify right side
    689,573.50x = 361,151,081,707.04
  5. Step 5: Solve for x
    x = 361,151,081,707.04/689,573.50
  6. Step 6: Final answer
    x = 523,731.09

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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.