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Finding the Fourth Proportional to 321,466.92, 443,970.90 and 250,692.36

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Solution

The fourth proportional to 321,466.92, 443,970.90 and 250,692.36 is: 346,225.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,466.92 : 443,970.90 = 250,692.36 : x
  2. Step 2: Convert to fraction form
    321,466.92/443,970.90 = 250,692.36/x
  3. Step 3: Cross multiply
    321,466.92x = 443,970.90 × 250,692.36
  4. Step 4: Simplify right side
    321,466.92x = 111,300,112,692.32
  5. Step 5: Solve for x
    x = 111,300,112,692.32/321,466.92
  6. Step 6: Final answer
    x = 346,225.71

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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.