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Finding the Fourth Proportional to 266,548.20, 399,166.20 and 177,318.60

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Solution

The fourth proportional to 266,548.20, 399,166.20 and 177,318.60 is: 265,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,548.20 : 399,166.20 = 177,318.60 : x
  2. Step 2: Convert to fraction form
    266,548.20/399,166.20 = 177,318.60/x
  3. Step 3: Cross multiply
    266,548.20x = 399,166.20 × 177,318.60
  4. Step 4: Simplify right side
    266,548.20x = 70,779,591,751.32
  5. Step 5: Solve for x
    x = 70,779,591,751.32/266,548.20
  6. Step 6: Final answer
    x = 265,541.44

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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.