Home / 691,739.01-1,037,640.33-211,932.45

Finding the Fourth Proportional to 691,739.01, 1,037,640.33 and 211,932.45

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Solution

The fourth proportional to 691,739.01, 1,037,640.33 and 211,932.45 is: 317,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,739.01 : 1,037,640.33 = 211,932.45 : x
  2. Step 2: Convert to fraction form
    691,739.01/1,037,640.33 = 211,932.45/x
  3. Step 3: Cross multiply
    691,739.01x = 1,037,640.33 × 211,932.45
  4. Step 4: Simplify right side
    691,739.01x = 219,909,657,355.71
  5. Step 5: Solve for x
    x = 219,909,657,355.71/691,739.01
  6. Step 6: Final answer
    x = 317,908.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.