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Finding the Fourth Proportional to 283,615.20, 426,056.40 and 236,959.20

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Solution

The fourth proportional to 283,615.20, 426,056.40 and 236,959.20 is: 355,968.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,615.20 : 426,056.40 = 236,959.20 : x
  2. Step 2: Convert to fraction form
    283,615.20/426,056.40 = 236,959.20/x
  3. Step 3: Cross multiply
    283,615.20x = 426,056.40 × 236,959.20
  4. Step 4: Simplify right side
    283,615.20x = 100,957,983,698.88
  5. Step 5: Solve for x
    x = 100,957,983,698.88/283,615.20
  6. Step 6: Final answer
    x = 355,968.17

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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.