Home / 554,233.05-764,776.62-312,501.20

Finding the Fourth Proportional to 554,233.05, 764,776.62 and 312,501.20

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Solution

The fourth proportional to 554,233.05, 764,776.62 and 312,501.20 is: 431,215.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,233.05 : 764,776.62 = 312,501.20 : x
  2. Step 2: Convert to fraction form
    554,233.05/764,776.62 = 312,501.20/x
  3. Step 3: Cross multiply
    554,233.05x = 764,776.62 × 312,501.20
  4. Step 4: Simplify right side
    554,233.05x = 238,993,611,481.94
  5. Step 5: Solve for x
    x = 238,993,611,481.94/554,233.05
  6. Step 6: Final answer
    x = 431,215.01

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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.