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Finding the Fourth Proportional to 612,160.20, 844,538.16 and 353,989.44

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Solution

The fourth proportional to 612,160.20, 844,538.16 and 353,989.44 is: 488,364.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,160.20 : 844,538.16 = 353,989.44 : x
  2. Step 2: Convert to fraction form
    612,160.20/844,538.16 = 353,989.44/x
  3. Step 3: Cross multiply
    612,160.20x = 844,538.16 × 353,989.44
  4. Step 4: Simplify right side
    612,160.20x = 298,957,590,317.03
  5. Step 5: Solve for x
    x = 298,957,590,317.03/612,160.20
  6. Step 6: Final answer
    x = 488,364.96

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1.5x scale

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.