Home / 908,198.31-1,253,352.55-505,790.31

Finding the Fourth Proportional to 908,198.31, 1,253,352.55 and 505,790.31

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Solution

The fourth proportional to 908,198.31, 1,253,352.55 and 505,790.31 is: 698,012.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,198.31 : 1,253,352.55 = 505,790.31 : x
  2. Step 2: Convert to fraction form
    908,198.31/1,253,352.55 = 505,790.31/x
  3. Step 3: Cross multiply
    908,198.31x = 1,253,352.55 × 505,790.31
  4. Step 4: Simplify right side
    908,198.31x = 633,933,574,803.79
  5. Step 5: Solve for x
    x = 633,933,574,803.79/908,198.31
  6. Step 6: Final answer
    x = 698,012.28

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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.