Home / 818,572.91-1,129,665.46-455,996.33

Finding the Fourth Proportional to 818,572.91, 1,129,665.46 and 455,996.33

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Solution

The fourth proportional to 818,572.91, 1,129,665.46 and 455,996.33 is: 629,294.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,572.91 : 1,129,665.46 = 455,996.33 : x
  2. Step 2: Convert to fraction form
    818,572.91/1,129,665.46 = 455,996.33/x
  3. Step 3: Cross multiply
    818,572.91x = 1,129,665.46 × 455,996.33
  4. Step 4: Simplify right side
    818,572.91x = 515,123,309,827.54
  5. Step 5: Solve for x
    x = 515,123,309,827.54/818,572.91
  6. Step 6: Final answer
    x = 629,294.35

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.