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Finding the Fourth Proportional to 384,047.60, 576,330.60 and 215,567.60

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Solution

The fourth proportional to 384,047.60, 576,330.60 and 215,567.60 is: 323,496.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,047.60 : 576,330.60 = 215,567.60 : x
  2. Step 2: Convert to fraction form
    384,047.60/576,330.60 = 215,567.60/x
  3. Step 3: Cross multiply
    384,047.60x = 576,330.60 × 215,567.60
  4. Step 4: Simplify right side
    384,047.60x = 124,238,204,248.56
  5. Step 5: Solve for x
    x = 124,238,204,248.56/384,047.60
  6. Step 6: Final answer
    x = 323,496.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.