Home / 811,234.27-1,119,458.02-443,638.87

Finding the Fourth Proportional to 811,234.27, 1,119,458.02 and 443,638.87

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Solution

The fourth proportional to 811,234.27, 1,119,458.02 and 443,638.87 is: 612,196.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,234.27 : 1,119,458.02 = 443,638.87 : x
  2. Step 2: Convert to fraction form
    811,234.27/1,119,458.02 = 443,638.87/x
  3. Step 3: Cross multiply
    811,234.27x = 1,119,458.02 × 443,638.87
  4. Step 4: Simplify right side
    811,234.27x = 496,635,091,005.24
  5. Step 5: Solve for x
    x = 496,635,091,005.24/811,234.27
  6. Step 6: Final answer
    x = 612,196.88

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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.