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Finding the Fourth Proportional to 269,556.80, 404,335.20 and 243,312.80

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Solution

The fourth proportional to 269,556.80, 404,335.20 and 243,312.80 is: 364,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,556.80 : 404,335.20 = 243,312.80 : x
  2. Step 2: Convert to fraction form
    269,556.80/404,335.20 = 243,312.80/x
  3. Step 3: Cross multiply
    269,556.80x = 404,335.20 × 243,312.80
  4. Step 4: Simplify right side
    269,556.80x = 98,379,929,650.56
  5. Step 5: Solve for x
    x = 98,379,929,650.56/269,556.80
  6. Step 6: Final answer
    x = 364,969.20

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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.