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Finding the Fourth Proportional to 321,370.60, 481,595.10 and 236,468.20

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Solution

The fourth proportional to 321,370.60, 481,595.10 and 236,468.20 is: 354,363.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,370.60 : 481,595.10 = 236,468.20 : x
  2. Step 2: Convert to fraction form
    321,370.60/481,595.10 = 236,468.20/x
  3. Step 3: Cross multiply
    321,370.60x = 481,595.10 × 236,468.20
  4. Step 4: Simplify right side
    321,370.60x = 113,881,926,425.82
  5. Step 5: Solve for x
    x = 113,881,926,425.82/321,370.60
  6. Step 6: Final answer
    x = 354,363.24

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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.