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Finding the Fourth Proportional to 545,241.96, 817,895.52 and 171,264.96

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Solution

The fourth proportional to 545,241.96, 817,895.52 and 171,264.96 is: 256,907.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,241.96 : 817,895.52 = 171,264.96 : x
  2. Step 2: Convert to fraction form
    545,241.96/817,895.52 = 171,264.96/x
  3. Step 3: Cross multiply
    545,241.96x = 817,895.52 × 171,264.96
  4. Step 4: Simplify right side
    545,241.96x = 140,076,843,516.98
  5. Step 5: Solve for x
    x = 140,076,843,516.98/545,241.96
  6. Step 6: Final answer
    x = 256,907.67

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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.