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Finding the Fourth Proportional to 326,477.66, 450,410.36 and 188,565.44

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Solution

The fourth proportional to 326,477.66, 450,410.36 and 188,565.44 is: 260,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,477.66 : 450,410.36 = 188,565.44 : x
  2. Step 2: Convert to fraction form
    326,477.66/450,410.36 = 188,565.44/x
  3. Step 3: Cross multiply
    326,477.66x = 450,410.36 × 188,565.44
  4. Step 4: Simplify right side
    326,477.66x = 84,931,824,519.08
  5. Step 5: Solve for x
    x = 84,931,824,519.08/326,477.66
  6. Step 6: Final answer
    x = 260,145.90

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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.