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Finding the Fourth Proportional to 355,306.40, 532,959.60 and 236,592.80

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Solution

The fourth proportional to 355,306.40, 532,959.60 and 236,592.80 is: 354,889.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,306.40 : 532,959.60 = 236,592.80 : x
  2. Step 2: Convert to fraction form
    355,306.40/532,959.60 = 236,592.80/x
  3. Step 3: Cross multiply
    355,306.40x = 532,959.60 × 236,592.80
  4. Step 4: Simplify right side
    355,306.40x = 126,094,404,050.88
  5. Step 5: Solve for x
    x = 126,094,404,050.88/355,306.40
  6. Step 6: Final answer
    x = 354,889.20

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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.