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Finding the Fourth Proportional to 320,412.35, 480,198.08 and 235,776.22

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Solution

The fourth proportional to 320,412.35, 480,198.08 and 235,776.22 is: 353,354.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,412.35 : 480,198.08 = 235,776.22 : x
  2. Step 2: Convert to fraction form
    320,412.35/480,198.08 = 235,776.22/x
  3. Step 3: Cross multiply
    320,412.35x = 480,198.08 × 235,776.22
  4. Step 4: Simplify right side
    320,412.35x = 113,219,287,542.60
  5. Step 5: Solve for x
    x = 113,219,287,542.60/320,412.35
  6. Step 6: Final answer
    x = 353,354.94

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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.