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Finding the Fourth Proportional to 518,003.61, 776,801.21 and 251,685.33

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Solution

The fourth proportional to 518,003.61, 776,801.21 and 251,685.33 is: 377,428.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,003.61 : 776,801.21 = 251,685.33 : x
  2. Step 2: Convert to fraction form
    518,003.61/776,801.21 = 251,685.33/x
  3. Step 3: Cross multiply
    518,003.61x = 776,801.21 × 251,685.33
  4. Step 4: Simplify right side
    518,003.61x = 195,509,467,624.82
  5. Step 5: Solve for x
    x = 195,509,467,624.82/518,003.61
  6. Step 6: Final answer
    x = 377,428.77

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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.