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Finding the Fourth Proportional to 707,357.10, 976,122.93 and 385,060.50

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Solution

The fourth proportional to 707,357.10, 976,122.93 and 385,060.50 is: 531,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,357.10 : 976,122.93 = 385,060.50 : x
  2. Step 2: Convert to fraction form
    707,357.10/976,122.93 = 385,060.50/x
  3. Step 3: Cross multiply
    707,357.10x = 976,122.93 × 385,060.50
  4. Step 4: Simplify right side
    707,357.10x = 375,866,383,487.27
  5. Step 5: Solve for x
    x = 375,866,383,487.27/707,357.10
  6. Step 6: Final answer
    x = 531,367.23

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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.