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Finding the Fourth Proportional to 401,074.20, 601,611.30 and 322,342.20

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Solution

The fourth proportional to 401,074.20, 601,611.30 and 322,342.20 is: 483,513.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,074.20 : 601,611.30 = 322,342.20 : x
  2. Step 2: Convert to fraction form
    401,074.20/601,611.30 = 322,342.20/x
  3. Step 3: Cross multiply
    401,074.20x = 601,611.30 × 322,342.20
  4. Step 4: Simplify right side
    401,074.20x = 193,924,709,986.86
  5. Step 5: Solve for x
    x = 193,924,709,986.86/401,074.20
  6. Step 6: Final answer
    x = 483,513.30

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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.