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Finding the Fourth Proportional to 885,173,196.60, 1,327,759,794.90 and 859,664,028.60

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Solution

The fourth proportional to 885,173,196.60, 1,327,759,794.90 and 859,664,028.60 is: 1,289,496,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,173,196.60 : 1,327,759,794.90 = 859,664,028.60 : x
  2. Step 2: Convert to fraction form
    885,173,196.60/1,327,759,794.90 = 859,664,028.60/x
  3. Step 3: Cross multiply
    885,173,196.60x = 1,327,759,794.90 × 859,664,028.60
  4. Step 4: Simplify right side
    885,173,196.60x = 1,141,427,334,296,843,904
  5. Step 5: Solve for x
    x = 1,141,427,334,296,843,904/885,173,196.60
  6. Step 6: Final answer
    x = 1,289,496,042.90

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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.