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Finding the Fourth Proportional to 473,044.20, 709,347.60 and 206,667.60

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Solution

The fourth proportional to 473,044.20, 709,347.60 and 206,667.60 is: 309,905.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,044.20 : 709,347.60 = 206,667.60 : x
  2. Step 2: Convert to fraction form
    473,044.20/709,347.60 = 206,667.60/x
  3. Step 3: Cross multiply
    473,044.20x = 709,347.60 × 206,667.60
  4. Step 4: Simplify right side
    473,044.20x = 146,599,166,057.76
  5. Step 5: Solve for x
    x = 146,599,166,057.76/473,044.20
  6. Step 6: Final answer
    x = 309,905.85

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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.