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Finding the Fourth Proportional to 366,836.46, 550,142.37 and 253,711.86

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Solution

The fourth proportional to 366,836.46, 550,142.37 and 253,711.86 is: 380,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,836.46 : 550,142.37 = 253,711.86 : x
  2. Step 2: Convert to fraction form
    366,836.46/550,142.37 = 253,711.86/x
  3. Step 3: Cross multiply
    366,836.46x = 550,142.37 × 253,711.86
  4. Step 4: Simplify right side
    366,836.46x = 139,577,643,957.51
  5. Step 5: Solve for x
    x = 139,577,643,957.51/366,836.46
  6. Step 6: Final answer
    x = 380,490.11

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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.