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Finding the Fourth Proportional to 483,478.18, 666,662.02 and 330,541.27

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Solution

The fourth proportional to 483,478.18, 666,662.02 and 330,541.27 is: 455,779.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,478.18 : 666,662.02 = 330,541.27 : x
  2. Step 2: Convert to fraction form
    483,478.18/666,662.02 = 330,541.27/x
  3. Step 3: Cross multiply
    483,478.18x = 666,662.02 × 330,541.27
  4. Step 4: Simplify right side
    483,478.18x = 220,359,310,751.57
  5. Step 5: Solve for x
    x = 220,359,310,751.57/483,478.18
  6. Step 6: Final answer
    x = 455,779.23

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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.