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Finding the Fourth Proportional to 326,000.45, 449,873.92 and 180,782.81

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Solution

The fourth proportional to 326,000.45, 449,873.92 and 180,782.81 is: 249,476.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,000.45 : 449,873.92 = 180,782.81 : x
  2. Step 2: Convert to fraction form
    326,000.45/449,873.92 = 180,782.81/x
  3. Step 3: Cross multiply
    326,000.45x = 449,873.92 × 180,782.81
  4. Step 4: Simplify right side
    326,000.45x = 81,329,471,066.95
  5. Step 5: Solve for x
    x = 81,329,471,066.95/326,000.45
  6. Step 6: Final answer
    x = 249,476.56

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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.