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Finding the Fourth Proportional to 8,907,848.40, 13,361,772.60 and 4,428,872.40

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Solution

The fourth proportional to 8,907,848.40, 13,361,772.60 and 4,428,872.40 is: 6,643,308.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907,848.40 : 13,361,772.60 = 4,428,872.40 : x
  2. Step 2: Convert to fraction form
    8,907,848.40/13,361,772.60 = 4,428,872.40/x
  3. Step 3: Cross multiply
    8,907,848.40x = 13,361,772.60 × 4,428,872.40
  4. Step 4: Simplify right side
    8,907,848.40x = 59,177,585,883,216.24
  5. Step 5: Solve for x
    x = 59,177,585,883,216.24/8,907,848.40
  6. Step 6: Final answer
    x = 6,643,308.60

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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.