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Finding the Fourth Proportional to 531,528.06, 797,372.40 and 171,578.64

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Solution

The fourth proportional to 531,528.06, 797,372.40 and 171,578.64 is: 257,393.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,528.06 : 797,372.40 = 171,578.64 : x
  2. Step 2: Convert to fraction form
    531,528.06/797,372.40 = 171,578.64/x
  3. Step 3: Cross multiply
    531,528.06x = 797,372.40 × 171,578.64
  4. Step 4: Simplify right side
    531,528.06x = 136,812,071,965.54
  5. Step 5: Solve for x
    x = 136,812,071,965.54/531,528.06
  6. Step 6: Final answer
    x = 257,393.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.