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Finding the Fourth Proportional to 576,920.34, 791,912.57 and 511,835.22

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Solution

The fourth proportional to 576,920.34, 791,912.57 and 511,835.22 is: 702,573.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,920.34 : 791,912.57 = 511,835.22 : x
  2. Step 2: Convert to fraction form
    576,920.34/791,912.57 = 511,835.22/x
  3. Step 3: Cross multiply
    576,920.34x = 791,912.57 × 511,835.22
  4. Step 4: Simplify right side
    576,920.34x = 405,328,741,927.54
  5. Step 5: Solve for x
    x = 405,328,741,927.54/576,920.34
  6. Step 6: Final answer
    x = 702,573.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.