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Finding the Fourth Proportional to 468,916.92, 647,130.49 and 264,976.45

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Solution

The fourth proportional to 468,916.92, 647,130.49 and 264,976.45 is: 365,681.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,916.92 : 647,130.49 = 264,976.45 : x
  2. Step 2: Convert to fraction form
    468,916.92/647,130.49 = 264,976.45/x
  3. Step 3: Cross multiply
    468,916.92x = 647,130.49 × 264,976.45
  4. Step 4: Simplify right side
    468,916.92x = 171,474,337,646.69
  5. Step 5: Solve for x
    x = 171,474,337,646.69/468,916.92
  6. Step 6: Final answer
    x = 365,681.70

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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.