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Finding the Fourth Proportional to 318,905,677.80, 446,770,279.80 and 318,905,677.80

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Solution

The fourth proportional to 318,905,677.80, 446,770,279.80 and 318,905,677.80 is: 446,770,279.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,905,677.80 : 446,770,279.80 = 318,905,677.80 : x
  2. Step 2: Convert to fraction form
    318,905,677.80/446,770,279.80 = 318,905,677.80/x
  3. Step 3: Cross multiply
    318,905,677.80x = 446,770,279.80 × 318,905,677.80
  4. Step 4: Simplify right side
    318,905,677.80x = 142,477,578,900,514,656
  5. Step 5: Solve for x
    x = 142,477,578,900,514,656/318,905,677.80
  6. Step 6: Final answer
    x = 446,770,279.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.