Home / 692,679.40-1,039,116.30-219,315.40

Finding the Fourth Proportional to 692,679.40, 1,039,116.30 and 219,315.40

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Solution

The fourth proportional to 692,679.40, 1,039,116.30 and 219,315.40 is: 329,003.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,679.40 : 1,039,116.30 = 219,315.40 : x
  2. Step 2: Convert to fraction form
    692,679.40/1,039,116.30 = 219,315.40/x
  3. Step 3: Cross multiply
    692,679.40x = 1,039,116.30 × 219,315.40
  4. Step 4: Simplify right side
    692,679.40x = 227,894,206,981.02
  5. Step 5: Solve for x
    x = 227,894,206,981.02/692,679.40
  6. Step 6: Final answer
    x = 329,003.88

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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.