Home / 419,907,620.20-629,861,430.30-396,099,063.40

Finding the Fourth Proportional to 419,907,620.20, 629,861,430.30 and 396,099,063.40

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Solution

The fourth proportional to 419,907,620.20, 629,861,430.30 and 396,099,063.40 is: 594,148,595.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,907,620.20 : 629,861,430.30 = 396,099,063.40 : x
  2. Step 2: Convert to fraction form
    419,907,620.20/629,861,430.30 = 396,099,063.40/x
  3. Step 3: Cross multiply
    419,907,620.20x = 629,861,430.30 × 396,099,063.40
  4. Step 4: Simplify right side
    419,907,620.20x = 249,487,522,613,614,336
  5. Step 5: Solve for x
    x = 249,487,522,613,614,336/419,907,620.20
  6. Step 6: Final answer
    x = 594,148,595.10

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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.