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Finding the Fourth Proportional to 909,946.20, 1,364,919.30 and 732,799.20

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Solution

The fourth proportional to 909,946.20, 1,364,919.30 and 732,799.20 is: 1,099,198.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,946.20 : 1,364,919.30 = 732,799.20 : x
  2. Step 2: Convert to fraction form
    909,946.20/1,364,919.30 = 732,799.20/x
  3. Step 3: Cross multiply
    909,946.20x = 1,364,919.30 × 732,799.20
  4. Step 4: Simplify right side
    909,946.20x = 1,000,211,771,104.56
  5. Step 5: Solve for x
    x = 1,000,211,771,104.56/909,946.20
  6. Step 6: Final answer
    x = 1,099,198.80

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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.