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Finding the Fourth Proportional to 632,925,824.40, 949,388,736.60 and 426,301,563.60

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Solution

The fourth proportional to 632,925,824.40, 949,388,736.60 and 426,301,563.60 is: 639,452,345.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,925,824.40 : 949,388,736.60 = 426,301,563.60 : x
  2. Step 2: Convert to fraction form
    632,925,824.40/949,388,736.60 = 426,301,563.60/x
  3. Step 3: Cross multiply
    632,925,824.40x = 949,388,736.60 × 426,301,563.60
  4. Step 4: Simplify right side
    632,925,824.40x = 404,725,902,876,808,576
  5. Step 5: Solve for x
    x = 404,725,902,876,808,576/632,925,824.40
  6. Step 6: Final answer
    x = 639,452,345.40

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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.