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Finding the Fourth Proportional to 468,467.48, 646,485.32 and 253,607.54

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Solution

The fourth proportional to 468,467.48, 646,485.32 and 253,607.54 is: 349,978.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,467.48 : 646,485.32 = 253,607.54 : x
  2. Step 2: Convert to fraction form
    468,467.48/646,485.32 = 253,607.54/x
  3. Step 3: Cross multiply
    468,467.48x = 646,485.32 × 253,607.54
  4. Step 4: Simplify right side
    468,467.48x = 163,953,551,651.31
  5. Step 5: Solve for x
    x = 163,953,551,651.31/468,467.48
  6. Step 6: Final answer
    x = 349,978.51

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1.5x scale

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.