Home / 811,000.80-1,119,161.16-448,415.04

Finding the Fourth Proportional to 811,000.80, 1,119,161.16 and 448,415.04

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Solution

The fourth proportional to 811,000.80, 1,119,161.16 and 448,415.04 is: 618,801.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,000.80 : 1,119,161.16 = 448,415.04 : x
  2. Step 2: Convert to fraction form
    811,000.80/1,119,161.16 = 448,415.04/x
  3. Step 3: Cross multiply
    811,000.80x = 1,119,161.16 × 448,415.04
  4. Step 4: Simplify right side
    811,000.80x = 501,848,696,327.85
  5. Step 5: Solve for x
    x = 501,848,696,327.85/811,000.80
  6. Step 6: Final answer
    x = 618,801.73

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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.