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Finding the Fourth Proportional to 299,549,793.60, 449,324,690.40 and 251,176,852.80

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Solution

The fourth proportional to 299,549,793.60, 449,324,690.40 and 251,176,852.80 is: 376,765,279.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,549,793.60 : 449,324,690.40 = 251,176,852.80 : x
  2. Step 2: Convert to fraction form
    299,549,793.60/449,324,690.40 = 251,176,852.80/x
  3. Step 3: Cross multiply
    299,549,793.60x = 449,324,690.40 × 251,176,852.80
  4. Step 4: Simplify right side
    299,549,793.60x = 112,859,961,620,006,368
  5. Step 5: Solve for x
    x = 112,859,961,620,006,368/299,549,793.60
  6. Step 6: Final answer
    x = 376,765,279.20

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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.