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Finding the Fourth Proportional to 401,335.20, 601,808.40 and 223,653.60

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Solution

The fourth proportional to 401,335.20, 601,808.40 and 223,653.60 is: 335,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,335.20 : 601,808.40 = 223,653.60 : x
  2. Step 2: Convert to fraction form
    401,335.20/601,808.40 = 223,653.60/x
  3. Step 3: Cross multiply
    401,335.20x = 601,808.40 × 223,653.60
  4. Step 4: Simplify right side
    401,335.20x = 134,596,615,170.24
  5. Step 5: Solve for x
    x = 134,596,615,170.24/401,335.20
  6. Step 6: Final answer
    x = 335,372.07

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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.