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Finding the Fourth Proportional to 295,520.20, 443,558.70 and 155,379.40

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Solution

The fourth proportional to 295,520.20, 443,558.70 and 155,379.40 is: 233,215.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,520.20 : 443,558.70 = 155,379.40 : x
  2. Step 2: Convert to fraction form
    295,520.20/443,558.70 = 155,379.40/x
  3. Step 3: Cross multiply
    295,520.20x = 443,558.70 × 155,379.40
  4. Step 4: Simplify right side
    295,520.20x = 68,919,884,670.78
  5. Step 5: Solve for x
    x = 68,919,884,670.78/295,520.20
  6. Step 6: Final answer
    x = 233,215.48

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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.