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Finding the Fourth Proportional to 634,535.61, 951,893.88 and 208,104.80

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Solution

The fourth proportional to 634,535.61, 951,893.88 and 208,104.80 is: 312,186.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,535.61 : 951,893.88 = 208,104.80 : x
  2. Step 2: Convert to fraction form
    634,535.61/951,893.88 = 208,104.80/x
  3. Step 3: Cross multiply
    634,535.61x = 951,893.88 × 208,104.80
  4. Step 4: Simplify right side
    634,535.61x = 198,093,679,978.76
  5. Step 5: Solve for x
    x = 198,093,679,978.76/634,535.61
  6. Step 6: Final answer
    x = 312,186.86

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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.