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Finding the Fourth Proportional to 488,763.92, 674,466.45 and 284,848.04

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Solution

The fourth proportional to 488,763.92, 674,466.45 and 284,848.04 is: 393,074.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,763.92 : 674,466.45 = 284,848.04 : x
  2. Step 2: Convert to fraction form
    488,763.92/674,466.45 = 284,848.04/x
  3. Step 3: Cross multiply
    488,763.92x = 674,466.45 × 284,848.04
  4. Step 4: Simplify right side
    488,763.92x = 192,120,446,946.24
  5. Step 5: Solve for x
    x = 192,120,446,946.24/488,763.92
  6. Step 6: Final answer
    x = 393,074.12

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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.