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Finding the Fourth Proportional to 531,755.68, 797,787.96 and 171,918.88

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Solution

The fourth proportional to 531,755.68, 797,787.96 and 171,918.88 is: 257,928.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,755.68 : 797,787.96 = 171,918.88 : x
  2. Step 2: Convert to fraction form
    531,755.68/797,787.96 = 171,918.88/x
  3. Step 3: Cross multiply
    531,755.68x = 797,787.96 × 171,918.88
  4. Step 4: Simplify right side
    531,755.68x = 137,154,812,560.69
  5. Step 5: Solve for x
    x = 137,154,812,560.69/531,755.68
  6. Step 6: Final answer
    x = 257,928.25

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1.5x scale

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.