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Finding the Fourth Proportional to 488,946.60, 733,638.60 and 236,129.40

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Solution

The fourth proportional to 488,946.60, 733,638.60 and 236,129.40 is: 354,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,946.60 : 733,638.60 = 236,129.40 : x
  2. Step 2: Convert to fraction form
    488,946.60/733,638.60 = 236,129.40/x
  3. Step 3: Cross multiply
    488,946.60x = 733,638.60 × 236,129.40
  4. Step 4: Simplify right side
    488,946.60x = 173,233,642,434.84
  5. Step 5: Solve for x
    x = 173,233,642,434.84/488,946.60
  6. Step 6: Final answer
    x = 354,299.72

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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.