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Finding the Fourth Proportional to 483,606.18, 666,838.08 and 330,669.54

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Solution

The fourth proportional to 483,606.18, 666,838.08 and 330,669.54 is: 455,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,606.18 : 666,838.08 = 330,669.54 : x
  2. Step 2: Convert to fraction form
    483,606.18/666,838.08 = 330,669.54/x
  3. Step 3: Cross multiply
    483,606.18x = 666,838.08 × 330,669.54
  4. Step 4: Simplify right side
    483,606.18x = 220,503,041,168.08
  5. Step 5: Solve for x
    x = 220,503,041,168.08/483,606.18
  6. Step 6: Final answer
    x = 455,955.80

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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.