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Finding the Fourth Proportional to 518,045.54, 776,871.48 and 247,896.38

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Solution

The fourth proportional to 518,045.54, 776,871.48 and 247,896.38 is: 371,750.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,045.54 : 776,871.48 = 247,896.38 : x
  2. Step 2: Convert to fraction form
    518,045.54/776,871.48 = 247,896.38/x
  3. Step 3: Cross multiply
    518,045.54x = 776,871.48 × 247,896.38
  4. Step 4: Simplify right side
    518,045.54x = 192,583,627,617.24
  5. Step 5: Solve for x
    x = 192,583,627,617.24/518,045.54
  6. Step 6: Final answer
    x = 371,750.38

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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.