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Finding the Fourth Proportional to 326,719.80, 456,474.60 and 326,719.80

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Solution

The fourth proportional to 326,719.80, 456,474.60 and 326,719.80 is: 456,474.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,719.80 : 456,474.60 = 326,719.80 : x
  2. Step 2: Convert to fraction form
    326,719.80/456,474.60 = 326,719.80/x
  3. Step 3: Cross multiply
    326,719.80x = 456,474.60 × 326,719.80
  4. Step 4: Simplify right side
    326,719.80x = 149,139,290,017.08
  5. Step 5: Solve for x
    x = 149,139,290,017.08/326,719.80
  6. Step 6: Final answer
    x = 456,474.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.