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Finding the Fourth Proportional to 490,949,132.40, 736,423,698.60 and 490,949,132.40

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Solution

The fourth proportional to 490,949,132.40, 736,423,698.60 and 490,949,132.40 is: 736,423,698.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,949,132.40 : 736,423,698.60 = 490,949,132.40 : x
  2. Step 2: Convert to fraction form
    490,949,132.40/736,423,698.60 = 490,949,132.40/x
  3. Step 3: Cross multiply
    490,949,132.40x = 736,423,698.60 × 490,949,132.40
  4. Step 4: Simplify right side
    490,949,132.40x = 361,546,575,906,469,120
  5. Step 5: Solve for x
    x = 361,546,575,906,469,120/490,949,132.40
  6. Step 6: Final answer
    x = 736,423,698.60

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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.