Home / 821,892.81-1,133,477.70-515,997.71

Finding the Fourth Proportional to 821,892.81, 1,133,477.70 and 515,997.71

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Solution

The fourth proportional to 821,892.81, 1,133,477.70 and 515,997.71 is: 711,615.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,892.81 : 1,133,477.70 = 515,997.71 : x
  2. Step 2: Convert to fraction form
    821,892.81/1,133,477.70 = 515,997.71/x
  3. Step 3: Cross multiply
    821,892.81x = 1,133,477.70 × 515,997.71
  4. Step 4: Simplify right side
    821,892.81x = 584,871,891,868.68
  5. Step 5: Solve for x
    x = 584,871,891,868.68/821,892.81
  6. Step 6: Final answer
    x = 711,615.78

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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.