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Finding the Fourth Proportional to 475,820.74, 713,505.12 and 276,202.32

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Solution

The fourth proportional to 475,820.74, 713,505.12 and 276,202.32 is: 414,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,820.74 : 713,505.12 = 276,202.32 : x
  2. Step 2: Convert to fraction form
    475,820.74/713,505.12 = 276,202.32/x
  3. Step 3: Cross multiply
    475,820.74x = 713,505.12 × 276,202.32
  4. Step 4: Simplify right side
    475,820.74x = 197,071,769,475.88
  5. Step 5: Solve for x
    x = 197,071,769,475.88/475,820.74
  6. Step 6: Final answer
    x = 414,172.30

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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.