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Finding the Fourth Proportional to 259,808.54, 358,211.51 and 198,630.55

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Solution

The fourth proportional to 259,808.54, 358,211.51 and 198,630.55 is: 273,862.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,808.54 : 358,211.51 = 198,630.55 : x
  2. Step 2: Convert to fraction form
    259,808.54/358,211.51 = 198,630.55/x
  3. Step 3: Cross multiply
    259,808.54x = 358,211.51 × 198,630.55
  4. Step 4: Simplify right side
    259,808.54x = 71,151,749,247.63
  5. Step 5: Solve for x
    x = 71,151,749,247.63/259,808.54
  6. Step 6: Final answer
    x = 273,862.24

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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.