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Finding the Fourth Proportional to 323,911.36, 446,801.70 and 209,010.16

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Solution

The fourth proportional to 323,911.36, 446,801.70 and 209,010.16 is: 288,307.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,911.36 : 446,801.70 = 209,010.16 : x
  2. Step 2: Convert to fraction form
    323,911.36/446,801.70 = 209,010.16/x
  3. Step 3: Cross multiply
    323,911.36x = 446,801.70 × 209,010.16
  4. Step 4: Simplify right side
    323,911.36x = 93,386,094,805.27
  5. Step 5: Solve for x
    x = 93,386,094,805.27/323,911.36
  6. Step 6: Final answer
    x = 288,307.56

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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.