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Finding the Fourth Proportional to 544,416.87, 751,082.64 and 311,719.47

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Solution

The fourth proportional to 544,416.87, 751,082.64 and 311,719.47 is: 430,051.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,416.87 : 751,082.64 = 311,719.47 : x
  2. Step 2: Convert to fraction form
    544,416.87/751,082.64 = 311,719.47/x
  3. Step 3: Cross multiply
    544,416.87x = 751,082.64 × 311,719.47
  4. Step 4: Simplify right side
    544,416.87x = 234,127,082,467.00
  5. Step 5: Solve for x
    x = 234,127,082,467.00/544,416.87
  6. Step 6: Final answer
    x = 430,051.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.