Home / 811,000.29-1,119,203.97-443,499.03

Finding the Fourth Proportional to 811,000.29, 1,119,203.97 and 443,499.03

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Solution

The fourth proportional to 811,000.29, 1,119,203.97 and 443,499.03 is: 612,041.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,000.29 : 1,119,203.97 = 443,499.03 : x
  2. Step 2: Convert to fraction form
    811,000.29/1,119,203.97 = 443,499.03/x
  3. Step 3: Cross multiply
    811,000.29x = 1,119,203.97 × 443,499.03
  4. Step 4: Simplify right side
    811,000.29x = 496,365,875,067.15
  5. Step 5: Solve for x
    x = 496,365,875,067.15/811,000.29
  6. Step 6: Final answer
    x = 612,041.55

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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.