Home / 441,072,590.40-661,608,885.60-419,909,428.80

Finding the Fourth Proportional to 441,072,590.40, 661,608,885.60 and 419,909,428.80

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Solution

The fourth proportional to 441,072,590.40, 661,608,885.60 and 419,909,428.80 is: 629,864,143.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,072,590.40 : 661,608,885.60 = 419,909,428.80 : x
  2. Step 2: Convert to fraction form
    441,072,590.40/661,608,885.60 = 419,909,428.80/x
  3. Step 3: Cross multiply
    441,072,590.40x = 661,608,885.60 × 419,909,428.80
  4. Step 4: Simplify right side
    441,072,590.40x = 277,815,809,241,300,576
  5. Step 5: Solve for x
    x = 277,815,809,241,300,576/441,072,590.40
  6. Step 6: Final answer
    x = 629,864,143.20

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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.