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Finding the Fourth Proportional to 272,280.60, 381,586.50 and 272,280.60

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Solution

The fourth proportional to 272,280.60, 381,586.50 and 272,280.60 is: 381,586.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,280.60 : 381,586.50 = 272,280.60 : x
  2. Step 2: Convert to fraction form
    272,280.60/381,586.50 = 272,280.60/x
  3. Step 3: Cross multiply
    272,280.60x = 381,586.50 × 272,280.60
  4. Step 4: Simplify right side
    272,280.60x = 103,898,601,171.90
  5. Step 5: Solve for x
    x = 103,898,601,171.90/272,280.60
  6. Step 6: Final answer
    x = 381,586.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.