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Finding the Fourth Proportional to 481,530.96, 664,182.72 and 330,365.52

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Solution

The fourth proportional to 481,530.96, 664,182.72 and 330,365.52 is: 455,678.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,530.96 : 664,182.72 = 330,365.52 : x
  2. Step 2: Convert to fraction form
    481,530.96/664,182.72 = 330,365.52/x
  3. Step 3: Cross multiply
    481,530.96x = 664,182.72 × 330,365.52
  4. Step 4: Simplify right side
    481,530.96x = 219,423,069,667.81
  5. Step 5: Solve for x
    x = 219,423,069,667.81/481,530.96
  6. Step 6: Final answer
    x = 455,678.01

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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.