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Finding the Fourth Proportional to 493,611.30, 740,416.95 and 227,890.80

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Solution

The fourth proportional to 493,611.30, 740,416.95 and 227,890.80 is: 341,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,611.30 : 740,416.95 = 227,890.80 : x
  2. Step 2: Convert to fraction form
    493,611.30/740,416.95 = 227,890.80/x
  3. Step 3: Cross multiply
    493,611.30x = 740,416.95 × 227,890.80
  4. Step 4: Simplify right side
    493,611.30x = 168,734,211,069.06
  5. Step 5: Solve for x
    x = 168,734,211,069.06/493,611.30
  6. Step 6: Final answer
    x = 341,836.20

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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.