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Finding the Fourth Proportional to 524,118.78, 723,379.92 and 342,991.44

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Solution

The fourth proportional to 524,118.78, 723,379.92 and 342,991.44 is: 473,391.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,118.78 : 723,379.92 = 342,991.44 : x
  2. Step 2: Convert to fraction form
    524,118.78/723,379.92 = 342,991.44/x
  3. Step 3: Cross multiply
    524,118.78x = 723,379.92 × 342,991.44
  4. Step 4: Simplify right side
    524,118.78x = 248,113,120,427.89
  5. Step 5: Solve for x
    x = 248,113,120,427.89/524,118.78
  6. Step 6: Final answer
    x = 473,391.01

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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.