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Finding the Fourth Proportional to 353,556.98, 487,899.29 and 192,408.57

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Solution

The fourth proportional to 353,556.98, 487,899.29 and 192,408.57 is: 265,518.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,556.98 : 487,899.29 = 192,408.57 : x
  2. Step 2: Convert to fraction form
    353,556.98/487,899.29 = 192,408.57/x
  3. Step 3: Cross multiply
    353,556.98x = 487,899.29 × 192,408.57
  4. Step 4: Simplify right side
    353,556.98x = 93,876,006,005.00
  5. Step 5: Solve for x
    x = 93,876,006,005.00/353,556.98
  6. Step 6: Final answer
    x = 265,518.74

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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.