Home / 769,795.56-1,154,572.05-257,456.80

Finding the Fourth Proportional to 769,795.56, 1,154,572.05 and 257,456.80

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Solution

The fourth proportional to 769,795.56, 1,154,572.05 and 257,456.80 is: 386,144.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,795.56 : 1,154,572.05 = 257,456.80 : x
  2. Step 2: Convert to fraction form
    769,795.56/1,154,572.05 = 257,456.80/x
  3. Step 3: Cross multiply
    769,795.56x = 1,154,572.05 × 257,456.80
  4. Step 4: Simplify right side
    769,795.56x = 297,252,425,362.44
  5. Step 5: Solve for x
    x = 297,252,425,362.44/769,795.56
  6. Step 6: Final answer
    x = 386,144.63

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Double scale
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Similar ratio
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1.5x scale

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.