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Finding the Fourth Proportional to 360,487.74, 540,889.68 and 171,084.90

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Solution

The fourth proportional to 360,487.74, 540,889.68 and 171,084.90 is: 256,702.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,487.74 : 540,889.68 = 171,084.90 : x
  2. Step 2: Convert to fraction form
    360,487.74/540,889.68 = 171,084.90/x
  3. Step 3: Cross multiply
    360,487.74x = 540,889.68 × 171,084.90
  4. Step 4: Simplify right side
    360,487.74x = 92,538,056,813.83
  5. Step 5: Solve for x
    x = 92,538,056,813.83/360,487.74
  6. Step 6: Final answer
    x = 256,702.37

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1.5x scale

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.