Home / 693,089.31-1,039,763.57-219,647.55

Finding the Fourth Proportional to 693,089.31, 1,039,763.57 and 219,647.55

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Solution

The fourth proportional to 693,089.31, 1,039,763.57 and 219,647.55 is: 329,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,089.31 : 1,039,763.57 = 219,647.55 : x
  2. Step 2: Convert to fraction form
    693,089.31/1,039,763.57 = 219,647.55/x
  3. Step 3: Cross multiply
    693,089.31x = 1,039,763.57 × 219,647.55
  4. Step 4: Simplify right side
    693,089.31x = 228,381,519,631.52
  5. Step 5: Solve for x
    x = 228,381,519,631.52/693,089.31
  6. Step 6: Final answer
    x = 329,512.40

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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.