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Finding the Fourth Proportional to 611,127.81, 843,339.27 and 335,485.62

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Solution

The fourth proportional to 611,127.81, 843,339.27 and 335,485.62 is: 462,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,127.81 : 843,339.27 = 335,485.62 : x
  2. Step 2: Convert to fraction form
    611,127.81/843,339.27 = 335,485.62/x
  3. Step 3: Cross multiply
    611,127.81x = 843,339.27 × 335,485.62
  4. Step 4: Simplify right side
    611,127.81x = 282,928,197,866.30
  5. Step 5: Solve for x
    x = 282,928,197,866.30/611,127.81
  6. Step 6: Final answer
    x = 462,960.76

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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.