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Finding the Fourth Proportional to 576,934.79, 796,168.02 and 318,804.54

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Solution

The fourth proportional to 576,934.79, 796,168.02 and 318,804.54 is: 439,949.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,934.79 : 796,168.02 = 318,804.54 : x
  2. Step 2: Convert to fraction form
    576,934.79/796,168.02 = 318,804.54/x
  3. Step 3: Cross multiply
    576,934.79x = 796,168.02 × 318,804.54
  4. Step 4: Simplify right side
    576,934.79x = 253,821,979,378.81
  5. Step 5: Solve for x
    x = 253,821,979,378.81/576,934.79
  6. Step 6: Final answer
    x = 439,949.17

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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.