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Finding the Fourth Proportional to 248,432.80, 372,649.20 and 226,271.20

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Solution

The fourth proportional to 248,432.80, 372,649.20 and 226,271.20 is: 339,406.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,432.80 : 372,649.20 = 226,271.20 : x
  2. Step 2: Convert to fraction form
    248,432.80/372,649.20 = 226,271.20/x
  3. Step 3: Cross multiply
    248,432.80x = 372,649.20 × 226,271.20
  4. Step 4: Simplify right side
    248,432.80x = 84,319,781,663.04
  5. Step 5: Solve for x
    x = 84,319,781,663.04/248,432.80
  6. Step 6: Final answer
    x = 339,406.80

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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.