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Finding the Fourth Proportional to 468,467.92, 646,485.93 and 253,607.97

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Solution

The fourth proportional to 468,467.92, 646,485.93 and 253,607.97 is: 349,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,467.92 : 646,485.93 = 253,607.97 : x
  2. Step 2: Convert to fraction form
    468,467.92/646,485.93 = 253,607.97/x
  3. Step 3: Cross multiply
    468,467.92x = 646,485.93 × 253,607.97
  4. Step 4: Simplify right side
    468,467.92x = 163,953,984,340.86
  5. Step 5: Solve for x
    x = 163,953,984,340.86/468,467.92
  6. Step 6: Final answer
    x = 349,979.11

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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.