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Finding the Fourth Proportional to 404,908,300.89, 558,773,994.11 and 219,269,636.73

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Solution

The fourth proportional to 404,908,300.89, 558,773,994.11 and 219,269,636.73 is: 302,592,390.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,908,300.89 : 558,773,994.11 = 219,269,636.73 : x
  2. Step 2: Convert to fraction form
    404,908,300.89/558,773,994.11 = 219,269,636.73/x
  3. Step 3: Cross multiply
    404,908,300.89x = 558,773,994.11 × 219,269,636.73
  4. Step 4: Simplify right side
    404,908,300.89x = 122,522,170,702,670,864
  5. Step 5: Solve for x
    x = 122,522,170,702,670,864/404,908,300.89
  6. Step 6: Final answer
    x = 302,592,390.51

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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.