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Finding the Fourth Proportional to 384,063.80, 576,095.70 and 347,322.20

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Solution

The fourth proportional to 384,063.80, 576,095.70 and 347,322.20 is: 520,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,063.80 : 576,095.70 = 347,322.20 : x
  2. Step 2: Convert to fraction form
    384,063.80/576,095.70 = 347,322.20/x
  3. Step 3: Cross multiply
    384,063.80x = 576,095.70 × 347,322.20
  4. Step 4: Simplify right side
    384,063.80x = 200,090,825,934.54
  5. Step 5: Solve for x
    x = 200,090,825,934.54/384,063.80
  6. Step 6: Final answer
    x = 520,983.30

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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.