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Finding the Fourth Proportional to 468,416.54, 646,414.29 and 253,556.54

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Solution

The fourth proportional to 468,416.54, 646,414.29 and 253,556.54 is: 349,907.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,416.54 : 646,414.29 = 253,556.54 : x
  2. Step 2: Convert to fraction form
    468,416.54/646,414.29 = 253,556.54/x
  3. Step 3: Cross multiply
    468,416.54x = 646,414.29 × 253,556.54
  4. Step 4: Simplify right side
    468,416.54x = 163,902,573,607.02
  5. Step 5: Solve for x
    x = 163,902,573,607.02/468,416.54
  6. Step 6: Final answer
    x = 349,907.74

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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.