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Finding the Fourth Proportional to 404,295,680.56, 557,928,039.72 and 218,656,696.72

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Solution

The fourth proportional to 404,295,680.56, 557,928,039.72 and 218,656,696.72 is: 301,746,241.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,295,680.56 : 557,928,039.72 = 218,656,696.72 : x
  2. Step 2: Convert to fraction form
    404,295,680.56/557,928,039.72 = 218,656,696.72/x
  3. Step 3: Cross multiply
    404,295,680.56x = 557,928,039.72 × 218,656,696.72
  4. Step 4: Simplify right side
    404,295,680.56x = 121,994,702,172,640,160
  5. Step 5: Solve for x
    x = 121,994,702,172,640,160/404,295,680.56
  6. Step 6: Final answer
    x = 301,746,241.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.