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Finding the Fourth Proportional to 647,913,930.63, 894,146,597.69 and 365,666,230.64

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Solution

The fourth proportional to 647,913,930.63, 894,146,597.69 and 365,666,230.64 is: 504,633,718.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,913,930.63 : 894,146,597.69 = 365,666,230.64 : x
  2. Step 2: Convert to fraction form
    647,913,930.63/894,146,597.69 = 365,666,230.64/x
  3. Step 3: Cross multiply
    647,913,930.63x = 894,146,597.69 × 365,666,230.64
  4. Step 4: Simplify right side
    647,913,930.63x = 326,959,216,010,583,744
  5. Step 5: Solve for x
    x = 326,959,216,010,583,744/647,913,930.63
  6. Step 6: Final answer
    x = 504,633,718.39

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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.