Home / 821,893.81-1,133,479.08-515,998.71

Finding the Fourth Proportional to 821,893.81, 1,133,479.08 and 515,998.71

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Solution

The fourth proportional to 821,893.81, 1,133,479.08 and 515,998.71 is: 711,617.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,893.81 : 1,133,479.08 = 515,998.71 : x
  2. Step 2: Convert to fraction form
    821,893.81/1,133,479.08 = 515,998.71/x
  3. Step 3: Cross multiply
    821,893.81x = 1,133,479.08 × 515,998.71
  4. Step 4: Simplify right side
    821,893.81x = 584,873,743,091.99
  5. Step 5: Solve for x
    x = 584,873,743,091.99/821,893.81
  6. Step 6: Final answer
    x = 711,617.17

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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.