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Finding the Fourth Proportional to 350,855.20, 526,282.80 and 323,821.60

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Solution

The fourth proportional to 350,855.20, 526,282.80 and 323,821.60 is: 485,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,855.20 : 526,282.80 = 323,821.60 : x
  2. Step 2: Convert to fraction form
    350,855.20/526,282.80 = 323,821.60/x
  3. Step 3: Cross multiply
    350,855.20x = 526,282.80 × 323,821.60
  4. Step 4: Simplify right side
    350,855.20x = 170,421,738,348.48
  5. Step 5: Solve for x
    x = 170,421,738,348.48/350,855.20
  6. Step 6: Final answer
    x = 485,732.40

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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.