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Finding the Fourth Proportional to 353,843.69, 488,324.80 and 266,472.33

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Solution

The fourth proportional to 353,843.69, 488,324.80 and 266,472.33 is: 367,747.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,843.69 : 488,324.80 = 266,472.33 : x
  2. Step 2: Convert to fraction form
    353,843.69/488,324.80 = 266,472.33/x
  3. Step 3: Cross multiply
    353,843.69x = 488,324.80 × 266,472.33
  4. Step 4: Simplify right side
    353,843.69x = 130,125,048,501.48
  5. Step 5: Solve for x
    x = 130,125,048,501.48/353,843.69
  6. Step 6: Final answer
    x = 367,747.26

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1.5x scale

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.