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Finding the Fourth Proportional to 468,468.24, 646,480.72 and 253,603.56

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Solution

The fourth proportional to 468,468.24, 646,480.72 and 253,603.56 is: 349,969.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,468.24 : 646,480.72 = 253,603.56 : x
  2. Step 2: Convert to fraction form
    468,468.24/646,480.72 = 253,603.56/x
  3. Step 3: Cross multiply
    468,468.24x = 646,480.72 × 253,603.56
  4. Step 4: Simplify right side
    468,468.24x = 163,949,812,063.36
  5. Step 5: Solve for x
    x = 163,949,812,063.36/468,468.24
  6. Step 6: Final answer
    x = 349,969.96

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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.