Home / 811,003.84-1,119,137.16-448,399.24

Finding the Fourth Proportional to 811,003.84, 1,119,137.16 and 448,399.24

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Solution

The fourth proportional to 811,003.84, 1,119,137.16 and 448,399.24 is: 618,764.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,003.84 : 1,119,137.16 = 448,399.24 : x
  2. Step 2: Convert to fraction form
    811,003.84/1,119,137.16 = 448,399.24/x
  3. Step 3: Cross multiply
    811,003.84x = 1,119,137.16 × 448,399.24
  4. Step 4: Simplify right side
    811,003.84x = 501,820,251,999.76
  5. Step 5: Solve for x
    x = 501,820,251,999.76/811,003.84
  6. Step 6: Final answer
    x = 618,764.34

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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.