Home / 811,809.36-1,120,280.15-449,232.98

Finding the Fourth Proportional to 811,809.36, 1,120,280.15 and 449,232.98

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Solution

The fourth proportional to 811,809.36, 1,120,280.15 and 449,232.98 is: 619,932.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,809.36 : 1,120,280.15 = 449,232.98 : x
  2. Step 2: Convert to fraction form
    811,809.36/1,120,280.15 = 449,232.98/x
  3. Step 3: Cross multiply
    811,809.36x = 1,120,280.15 × 449,232.98
  4. Step 4: Simplify right side
    811,809.36x = 503,266,782,371.78
  5. Step 5: Solve for x
    x = 503,266,782,371.78/811,809.36
  6. Step 6: Final answer
    x = 619,932.22

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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.