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Finding the Fourth Proportional to 628,149.96, 866,849.50 and 341,671.80

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Solution

The fourth proportional to 628,149.96, 866,849.50 and 341,671.80 is: 471,508.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,149.96 : 866,849.50 = 341,671.80 : x
  2. Step 2: Convert to fraction form
    628,149.96/866,849.50 = 341,671.80/x
  3. Step 3: Cross multiply
    628,149.96x = 866,849.50 × 341,671.80
  4. Step 4: Simplify right side
    628,149.96x = 296,178,028,994.10
  5. Step 5: Solve for x
    x = 296,178,028,994.10/628,149.96
  6. Step 6: Final answer
    x = 471,508.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.