Home / 812,654.06-1,121,429.61-450,056.34

Finding the Fourth Proportional to 812,654.06, 1,121,429.61 and 450,056.34

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Solution

The fourth proportional to 812,654.06, 1,121,429.61 and 450,056.34 is: 621,059.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,654.06 : 1,121,429.61 = 450,056.34 : x
  2. Step 2: Convert to fraction form
    812,654.06/1,121,429.61 = 450,056.34/x
  3. Step 3: Cross multiply
    812,654.06x = 1,121,429.61 × 450,056.34
  4. Step 4: Simplify right side
    812,654.06x = 504,706,505,844.23
  5. Step 5: Solve for x
    x = 504,706,505,844.23/812,654.06
  6. Step 6: Final answer
    x = 621,059.48

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Double scale
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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.