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Finding the Fourth Proportional to 619,407.92, 928,327.98 and 353,318.08

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Solution

The fourth proportional to 619,407.92, 928,327.98 and 353,318.08 is: 529,529.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,407.92 : 928,327.98 = 353,318.08 : x
  2. Step 2: Convert to fraction form
    619,407.92/928,327.98 = 353,318.08/x
  3. Step 3: Cross multiply
    619,407.92x = 928,327.98 × 353,318.08
  4. Step 4: Simplify right side
    619,407.92x = 327,995,059,503.88
  5. Step 5: Solve for x
    x = 327,995,059,503.88/619,407.92
  6. Step 6: Final answer
    x = 529,529.97

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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.