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Finding the Fourth Proportional to 468,455.52, 646,467.87 and 253,595.53

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Solution

The fourth proportional to 468,455.52, 646,467.87 and 253,595.53 is: 349,961.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,455.52 : 646,467.87 = 253,595.53 : x
  2. Step 2: Convert to fraction form
    468,455.52/646,467.87 = 253,595.53/x
  3. Step 3: Cross multiply
    468,455.52x = 646,467.87 × 253,595.53
  4. Step 4: Simplify right side
    468,455.52x = 163,941,360,504.45
  5. Step 5: Solve for x
    x = 163,941,360,504.45/468,455.52
  6. Step 6: Final answer
    x = 349,961.42

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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.