Home / 754,117.74-1,131,176.88-221,638.86

Finding the Fourth Proportional to 754,117.74, 1,131,176.88 and 221,638.86

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Solution

The fourth proportional to 754,117.74, 1,131,176.88 and 221,638.86 is: 332,458.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,117.74 : 1,131,176.88 = 221,638.86 : x
  2. Step 2: Convert to fraction form
    754,117.74/1,131,176.88 = 221,638.86/x
  3. Step 3: Cross multiply
    754,117.74x = 1,131,176.88 × 221,638.86
  4. Step 4: Simplify right side
    754,117.74x = 250,712,754,141.56
  5. Step 5: Solve for x
    x = 250,712,754,141.56/754,117.74
  6. Step 6: Final answer
    x = 332,458.37

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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.