Home / 812,471.01-1,121,196.29-449,887.08

Finding the Fourth Proportional to 812,471.01, 1,121,196.29 and 449,887.08

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Solution

The fourth proportional to 812,471.01, 1,121,196.29 and 449,887.08 is: 620,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,471.01 : 1,121,196.29 = 449,887.08 : x
  2. Step 2: Convert to fraction form
    812,471.01/1,121,196.29 = 449,887.08/x
  3. Step 3: Cross multiply
    812,471.01x = 1,121,196.29 × 449,887.08
  4. Step 4: Simplify right side
    812,471.01x = 504,411,725,014.93
  5. Step 5: Solve for x
    x = 504,411,725,014.93/812,471.01
  6. Step 6: Final answer
    x = 620,836.58

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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.