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Finding the Fourth Proportional to 354,912.10, 532,368.15 and 325,881.70

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Solution

The fourth proportional to 354,912.10, 532,368.15 and 325,881.70 is: 488,822.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,912.10 : 532,368.15 = 325,881.70 : x
  2. Step 2: Convert to fraction form
    354,912.10/532,368.15 = 325,881.70/x
  3. Step 3: Cross multiply
    354,912.10x = 532,368.15 × 325,881.70
  4. Step 4: Simplify right side
    354,912.10x = 173,489,037,747.86
  5. Step 5: Solve for x
    x = 173,489,037,747.86/354,912.10
  6. Step 6: Final answer
    x = 488,822.55

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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.