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Finding the Fourth Proportional to 335,449.38, 503,407.35 and 216,826.50

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Solution

The fourth proportional to 335,449.38, 503,407.35 and 216,826.50 is: 325,390.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,449.38 : 503,407.35 = 216,826.50 : x
  2. Step 2: Convert to fraction form
    335,449.38/503,407.35 = 216,826.50/x
  3. Step 3: Cross multiply
    335,449.38x = 503,407.35 × 216,826.50
  4. Step 4: Simplify right side
    335,449.38x = 109,152,053,774.78
  5. Step 5: Solve for x
    x = 109,152,053,774.78/335,449.38
  6. Step 6: Final answer
    x = 325,390.54

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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.