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Finding the Fourth Proportional to 606,783.12, 837,007.17 and 388,914.18

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Solution

The fourth proportional to 606,783.12, 837,007.17 and 388,914.18 is: 536,474.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,783.12 : 837,007.17 = 388,914.18 : x
  2. Step 2: Convert to fraction form
    606,783.12/837,007.17 = 388,914.18/x
  3. Step 3: Cross multiply
    606,783.12x = 837,007.17 × 388,914.18
  4. Step 4: Simplify right side
    606,783.12x = 325,523,957,174.67
  5. Step 5: Solve for x
    x = 325,523,957,174.67/606,783.12
  6. Step 6: Final answer
    x = 536,474.97

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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.