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Finding the Fourth Proportional to 366,783.36, 506,256.96 and 215,928.96

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Solution

The fourth proportional to 366,783.36, 506,256.96 and 215,928.96 is: 298,038.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,783.36 : 506,256.96 = 215,928.96 : x
  2. Step 2: Convert to fraction form
    366,783.36/506,256.96 = 215,928.96/x
  3. Step 3: Cross multiply
    366,783.36x = 506,256.96 × 215,928.96
  4. Step 4: Simplify right side
    366,783.36x = 109,315,538,865.56
  5. Step 5: Solve for x
    x = 109,315,538,865.56/366,783.36
  6. Step 6: Final answer
    x = 298,038.44

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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.