Home / 692,817.21-1,039,213.50-219,490.28

Finding the Fourth Proportional to 692,817.21, 1,039,213.50 and 219,490.28

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Solution

The fourth proportional to 692,817.21, 1,039,213.50 and 219,490.28 is: 329,231.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,817.21 : 1,039,213.50 = 219,490.28 : x
  2. Step 2: Convert to fraction form
    692,817.21/1,039,213.50 = 219,490.28/x
  3. Step 3: Cross multiply
    692,817.21x = 1,039,213.50 × 219,490.28
  4. Step 4: Simplify right side
    692,817.21x = 228,097,256,898.71
  5. Step 5: Solve for x
    x = 228,097,256,898.71/692,817.21
  6. Step 6: Final answer
    x = 329,231.51

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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.