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Finding the Fourth Proportional to 398,068.88, 595,700.94 and 248,379.68

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Solution

The fourth proportional to 398,068.88, 595,700.94 and 248,379.68 is: 371,694.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,068.88 : 595,700.94 = 248,379.68 : x
  2. Step 2: Convert to fraction form
    398,068.88/595,700.94 = 248,379.68/x
  3. Step 3: Cross multiply
    398,068.88x = 595,700.94 × 248,379.68
  4. Step 4: Simplify right side
    398,068.88x = 147,960,008,852.90
  5. Step 5: Solve for x
    x = 147,960,008,852.90/398,068.88
  6. Step 6: Final answer
    x = 371,694.49

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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.