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Finding the Fourth Proportional to 363,605.41, 545,225.61 and 211,851.61

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Solution

The fourth proportional to 363,605.41, 545,225.61 and 211,851.61 is: 317,671.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,605.41 : 545,225.61 = 211,851.61 : x
  2. Step 2: Convert to fraction form
    363,605.41/545,225.61 = 211,851.61/x
  3. Step 3: Cross multiply
    363,605.41x = 545,225.61 × 211,851.61
  4. Step 4: Simplify right side
    363,605.41x = 115,506,923,291.73
  5. Step 5: Solve for x
    x = 115,506,923,291.73/363,605.41
  6. Step 6: Final answer
    x = 317,671.08

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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.