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Finding the Fourth Proportional to 608,538.60, 912,807.90 and 276,114.60

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Solution

The fourth proportional to 608,538.60, 912,807.90 and 276,114.60 is: 414,171.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,538.60 : 912,807.90 = 276,114.60 : x
  2. Step 2: Convert to fraction form
    608,538.60/912,807.90 = 276,114.60/x
  3. Step 3: Cross multiply
    608,538.60x = 912,807.90 × 276,114.60
  4. Step 4: Simplify right side
    608,538.60x = 252,039,588,185.34
  5. Step 5: Solve for x
    x = 252,039,588,185.34/608,538.60
  6. Step 6: Final answer
    x = 414,171.90

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Similar ratio
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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.