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Finding the Fourth Proportional to 519,960.14, 717,559.71 and 293,639.66

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Solution

The fourth proportional to 519,960.14, 717,559.71 and 293,639.66 is: 405,231.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,960.14 : 717,559.71 = 293,639.66 : x
  2. Step 2: Convert to fraction form
    519,960.14/717,559.71 = 293,639.66/x
  3. Step 3: Cross multiply
    519,960.14x = 717,559.71 × 293,639.66
  4. Step 4: Simplify right side
    519,960.14x = 210,703,989,274.10
  5. Step 5: Solve for x
    x = 210,703,989,274.10/519,960.14
  6. Step 6: Final answer
    x = 405,231.04

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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.