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Finding the Fourth Proportional to 337,603.80, 506,405.70 and 211,632.60

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Solution

The fourth proportional to 337,603.80, 506,405.70 and 211,632.60 is: 317,448.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,603.80 : 506,405.70 = 211,632.60 : x
  2. Step 2: Convert to fraction form
    337,603.80/506,405.70 = 211,632.60/x
  3. Step 3: Cross multiply
    337,603.80x = 506,405.70 × 211,632.60
  4. Step 4: Simplify right side
    337,603.80x = 107,171,954,945.82
  5. Step 5: Solve for x
    x = 107,171,954,945.82/337,603.80
  6. Step 6: Final answer
    x = 317,448.90

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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.