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Finding the Fourth Proportional to 468,420.29, 646,419.46 and 253,560.29

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Solution

The fourth proportional to 468,420.29, 646,419.46 and 253,560.29 is: 349,912.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,420.29 : 646,419.46 = 253,560.29 : x
  2. Step 2: Convert to fraction form
    468,420.29/646,419.46 = 253,560.29/x
  3. Step 3: Cross multiply
    468,420.29x = 646,419.46 × 253,560.29
  4. Step 4: Simplify right side
    468,420.29x = 163,906,305,739.24
  5. Step 5: Solve for x
    x = 163,906,305,739.24/468,420.29
  6. Step 6: Final answer
    x = 349,912.91

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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.