Home / 905,440.68-1,247,926.50-663,208.56

Finding the Fourth Proportional to 905,440.68, 1,247,926.50 and 663,208.56

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Solution

The fourth proportional to 905,440.68, 1,247,926.50 and 663,208.56 is: 914,069.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,440.68 : 1,247,926.50 = 663,208.56 : x
  2. Step 2: Convert to fraction form
    905,440.68/1,247,926.50 = 663,208.56/x
  3. Step 3: Cross multiply
    905,440.68x = 1,247,926.50 × 663,208.56
  4. Step 4: Simplify right side
    905,440.68x = 827,635,537,050.84
  5. Step 5: Solve for x
    x = 827,635,537,050.84/905,440.68
  6. Step 6: Final answer
    x = 914,069.31

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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.