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Finding the Fourth Proportional to 468,274.32, 646,220.15 and 253,414.32

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Solution

The fourth proportional to 468,274.32, 646,220.15 and 253,414.32 is: 349,712.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,274.32 : 646,220.15 = 253,414.32 : x
  2. Step 2: Convert to fraction form
    468,274.32/646,220.15 = 253,414.32/x
  3. Step 3: Cross multiply
    468,274.32x = 646,220.15 × 253,414.32
  4. Step 4: Simplify right side
    468,274.32x = 163,761,438,615.48
  5. Step 5: Solve for x
    x = 163,761,438,615.48/468,274.32
  6. Step 6: Final answer
    x = 349,712.62

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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.