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Finding the Fourth Proportional to 326,578.46, 450,599.42 and 190,534.77

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Solution

The fourth proportional to 326,578.46, 450,599.42 and 190,534.77 is: 262,891.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,578.46 : 450,599.42 = 190,534.77 : x
  2. Step 2: Convert to fraction form
    326,578.46/450,599.42 = 190,534.77/x
  3. Step 3: Cross multiply
    326,578.46x = 450,599.42 × 190,534.77
  4. Step 4: Simplify right side
    326,578.46x = 85,854,857,328.17
  5. Step 5: Solve for x
    x = 85,854,857,328.17/326,578.46
  6. Step 6: Final answer
    x = 262,891.98

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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.