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Finding the Fourth Proportional to 703,864.66, 1,055,776.50 and 171,378

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Solution

The fourth proportional to 703,864.66, 1,055,776.50 and 171,378 is: 257,062.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,864.66 : 1,055,776.50 = 171,378 : x
  2. Step 2: Convert to fraction form
    703,864.66/1,055,776.50 = 171,378/x
  3. Step 3: Cross multiply
    703,864.66x = 1,055,776.50 × 171,378
  4. Step 4: Simplify right side
    703,864.66x = 180,936,865,017
  5. Step 5: Solve for x
    x = 180,936,865,017/703,864.66
  6. Step 6: Final answer
    x = 257,062.01

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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.