Home / 945,792.45-1,305,212.54-516,090.69

Finding the Fourth Proportional to 945,792.45, 1,305,212.54 and 516,090.69

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Solution

The fourth proportional to 945,792.45, 1,305,212.54 and 516,090.69 is: 712,215.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,792.45 : 1,305,212.54 = 516,090.69 : x
  2. Step 2: Convert to fraction form
    945,792.45/1,305,212.54 = 516,090.69/x
  3. Step 3: Cross multiply
    945,792.45x = 1,305,212.54 × 516,090.69
  4. Step 4: Simplify right side
    945,792.45x = 673,608,037,784.80
  5. Step 5: Solve for x
    x = 673,608,037,784.80/945,792.45
  6. Step 6: Final answer
    x = 712,215.49

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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.