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Finding the Fourth Proportional to 295,520.80, 443,281.20 and 261,695.20

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Solution

The fourth proportional to 295,520.80, 443,281.20 and 261,695.20 is: 392,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,520.80 : 443,281.20 = 261,695.20 : x
  2. Step 2: Convert to fraction form
    295,520.80/443,281.20 = 261,695.20/x
  3. Step 3: Cross multiply
    295,520.80x = 443,281.20 × 261,695.20
  4. Step 4: Simplify right side
    295,520.80x = 116,004,562,290.24
  5. Step 5: Solve for x
    x = 116,004,562,290.24/295,520.80
  6. Step 6: Final answer
    x = 392,542.80

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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.