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Finding the Fourth Proportional to 535,071.42, 738,398.34 and 293,348.79

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Solution

The fourth proportional to 535,071.42, 738,398.34 and 293,348.79 is: 404,821.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,071.42 : 738,398.34 = 293,348.79 : x
  2. Step 2: Convert to fraction form
    535,071.42/738,398.34 = 293,348.79/x
  3. Step 3: Cross multiply
    535,071.42x = 738,398.34 × 293,348.79
  4. Step 4: Simplify right side
    535,071.42x = 216,608,259,577.01
  5. Step 5: Solve for x
    x = 216,608,259,577.01/535,071.42
  6. Step 6: Final answer
    x = 404,821.21

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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.