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Finding the Fourth Proportional to 703,755.87, 1,055,624.88 and 171,278.07

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Solution

The fourth proportional to 703,755.87, 1,055,624.88 and 171,278.07 is: 256,914.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,755.87 : 1,055,624.88 = 171,278.07 : x
  2. Step 2: Convert to fraction form
    703,755.87/1,055,624.88 = 171,278.07/x
  3. Step 3: Cross multiply
    703,755.87x = 1,055,624.88 × 171,278.07
  4. Step 4: Simplify right side
    703,755.87x = 180,805,392,090.38
  5. Step 5: Solve for x
    x = 180,805,392,090.38/703,755.87
  6. Step 6: Final answer
    x = 256,914.93

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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.