Home / 821,326.80-1,133,419.01-458,755.77

Finding the Fourth Proportional to 821,326.80, 1,133,419.01 and 458,755.77

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Solution

The fourth proportional to 821,326.80, 1,133,419.01 and 458,755.77 is: 633,076.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,326.80 : 1,133,419.01 = 458,755.77 : x
  2. Step 2: Convert to fraction form
    821,326.80/1,133,419.01 = 458,755.77/x
  3. Step 3: Cross multiply
    821,326.80x = 1,133,419.01 × 458,755.77
  4. Step 4: Simplify right side
    821,326.80x = 519,962,508,371.41
  5. Step 5: Solve for x
    x = 519,962,508,371.41/821,326.80
  6. Step 6: Final answer
    x = 633,076.27

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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.