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Finding the Fourth Proportional to 264,634,602.40, 396,951,903.60 and 191,508,320.80

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Solution

The fourth proportional to 264,634,602.40, 396,951,903.60 and 191,508,320.80 is: 287,262,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,634,602.40 : 396,951,903.60 = 191,508,320.80 : x
  2. Step 2: Convert to fraction form
    264,634,602.40/396,951,903.60 = 191,508,320.80/x
  3. Step 3: Cross multiply
    264,634,602.40x = 396,951,903.60 × 191,508,320.80
  4. Step 4: Simplify right side
    264,634,602.40x = 76,019,592,496,799,488
  5. Step 5: Solve for x
    x = 76,019,592,496,799,488/264,634,602.40
  6. Step 6: Final answer
    x = 287,262,481.20

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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.