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Finding the Fourth Proportional to 517,786.69, 714,671.47 and 299,960.17

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Solution

The fourth proportional to 517,786.69, 714,671.47 and 299,960.17 is: 414,017.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,786.69 : 714,671.47 = 299,960.17 : x
  2. Step 2: Convert to fraction form
    517,786.69/714,671.47 = 299,960.17/x
  3. Step 3: Cross multiply
    517,786.69x = 714,671.47 × 299,960.17
  4. Step 4: Simplify right side
    517,786.69x = 214,372,975,635.35
  5. Step 5: Solve for x
    x = 214,372,975,635.35/517,786.69
  6. Step 6: Final answer
    x = 414,017.93

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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.