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Finding the Fourth Proportional to 433,037.80, 649,556.70 and 300,068.20

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Solution

The fourth proportional to 433,037.80, 649,556.70 and 300,068.20 is: 450,102.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,037.80 : 649,556.70 = 300,068.20 : x
  2. Step 2: Convert to fraction form
    433,037.80/649,556.70 = 300,068.20/x
  3. Step 3: Cross multiply
    433,037.80x = 649,556.70 × 300,068.20
  4. Step 4: Simplify right side
    433,037.80x = 194,911,309,766.94
  5. Step 5: Solve for x
    x = 194,911,309,766.94/433,037.80
  6. Step 6: Final answer
    x = 450,102.30

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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.