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Finding the Fourth Proportional to 535,186.70, 738,564.72 and 293,468.66

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Solution

The fourth proportional to 535,186.70, 738,564.72 and 293,468.66 is: 404,990.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,186.70 : 738,564.72 = 293,468.66 : x
  2. Step 2: Convert to fraction form
    535,186.70/738,564.72 = 293,468.66/x
  3. Step 3: Cross multiply
    535,186.70x = 738,564.72 × 293,468.66
  4. Step 4: Simplify right side
    535,186.70x = 216,745,598,701.68
  5. Step 5: Solve for x
    x = 216,745,598,701.68/535,186.70
  6. Step 6: Final answer
    x = 404,990.63

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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.