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Finding the Fourth Proportional to 336,809,715.60, 505,214,573.40 and 191,187,008.40

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Solution

The fourth proportional to 336,809,715.60, 505,214,573.40 and 191,187,008.40 is: 286,780,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,809,715.60 : 505,214,573.40 = 191,187,008.40 : x
  2. Step 2: Convert to fraction form
    336,809,715.60/505,214,573.40 = 191,187,008.40/x
  3. Step 3: Cross multiply
    336,809,715.60x = 505,214,573.40 × 191,187,008.40
  4. Step 4: Simplify right side
    336,809,715.60x = 96,590,462,888,428,208
  5. Step 5: Solve for x
    x = 96,590,462,888,428,208/336,809,715.60
  6. Step 6: Final answer
    x = 286,780,512.60

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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.