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Finding the Fourth Proportional to 707,263.90, 976,049.94 and 384,958.42

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Solution

The fourth proportional to 707,263.90, 976,049.94 and 384,958.42 is: 531,256.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,263.90 : 976,049.94 = 384,958.42 : x
  2. Step 2: Convert to fraction form
    707,263.90/976,049.94 = 384,958.42/x
  3. Step 3: Cross multiply
    707,263.90x = 976,049.94 × 384,958.42
  4. Step 4: Simplify right side
    707,263.90x = 375,738,642,743.50
  5. Step 5: Solve for x
    x = 375,738,642,743.50/707,263.90
  6. Step 6: Final answer
    x = 531,256.64

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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.