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Finding the Fourth Proportional to 336,807,687.60, 505,211,531.40 and 191,184,980.40

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Solution

The fourth proportional to 336,807,687.60, 505,211,531.40 and 191,184,980.40 is: 286,777,470.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,807,687.60 : 505,211,531.40 = 191,184,980.40 : x
  2. Step 2: Convert to fraction form
    336,807,687.60/505,211,531.40 = 191,184,980.40/x
  3. Step 3: Cross multiply
    336,807,687.60x = 505,211,531.40 × 191,184,980.40
  4. Step 4: Simplify right side
    336,807,687.60x = 96,588,856,728,562,976
  5. Step 5: Solve for x
    x = 96,588,856,728,562,976/336,807,687.60
  6. Step 6: Final answer
    x = 286,777,470.60

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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.