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Finding the Fourth Proportional to 363,745.60, 545,112.66 and 316,263.40

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Solution

The fourth proportional to 363,745.60, 545,112.66 and 316,263.40 is: 473,955.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,745.60 : 545,112.66 = 316,263.40 : x
  2. Step 2: Convert to fraction form
    363,745.60/545,112.66 = 316,263.40/x
  3. Step 3: Cross multiply
    363,745.60x = 545,112.66 × 316,263.40
  4. Step 4: Simplify right side
    363,745.60x = 172,399,183,234.64
  5. Step 5: Solve for x
    x = 172,399,183,234.64/363,745.60
  6. Step 6: Final answer
    x = 473,955.38

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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.