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Finding the Fourth Proportional to 535,668.54, 739,220.40 and 293,955.14

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Solution

The fourth proportional to 535,668.54, 739,220.40 and 293,955.14 is: 405,656.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,668.54 : 739,220.40 = 293,955.14 : x
  2. Step 2: Convert to fraction form
    535,668.54/739,220.40 = 293,955.14/x
  3. Step 3: Cross multiply
    535,668.54x = 739,220.40 × 293,955.14
  4. Step 4: Simplify right side
    535,668.54x = 217,297,638,020.91
  5. Step 5: Solve for x
    x = 217,297,638,020.91/535,668.54
  6. Step 6: Final answer
    x = 405,656.90

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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.