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Finding the Fourth Proportional to 473,940.90, 654,042.80 and 269,988.80

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Solution

The fourth proportional to 473,940.90, 654,042.80 and 269,988.80 is: 372,587.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    473,940.90 : 654,042.80 = 269,988.80 : x
  2. Step 2: Convert to fraction form
    473,940.90/654,042.80 = 269,988.80/x
  3. Step 3: Cross multiply
    473,940.90x = 654,042.80 × 269,988.80
  4. Step 4: Simplify right side
    473,940.90x = 176,584,230,720.64
  5. Step 5: Solve for x
    x = 176,584,230,720.64/473,940.90
  6. Step 6: Final answer
    x = 372,587.03

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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.