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Finding the Fourth Proportional to 262,953.10, 394,429.65 and 248,437.90

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Solution

The fourth proportional to 262,953.10, 394,429.65 and 248,437.90 is: 372,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,953.10 : 394,429.65 = 248,437.90 : x
  2. Step 2: Convert to fraction form
    262,953.10/394,429.65 = 248,437.90/x
  3. Step 3: Cross multiply
    262,953.10x = 394,429.65 × 248,437.90
  4. Step 4: Simplify right side
    262,953.10x = 97,991,273,943.74
  5. Step 5: Solve for x
    x = 97,991,273,943.74/262,953.10
  6. Step 6: Final answer
    x = 372,656.85

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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.