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Finding the Fourth Proportional to 722,809.76, 997,643.92 and 481,101.92

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Solution

The fourth proportional to 722,809.76, 997,643.92 and 481,101.92 is: 664,031.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,809.76 : 997,643.92 = 481,101.92 : x
  2. Step 2: Convert to fraction form
    722,809.76/997,643.92 = 481,101.92/x
  3. Step 3: Cross multiply
    722,809.76x = 997,643.92 × 481,101.92
  4. Step 4: Simplify right side
    722,809.76x = 479,968,405,388.33
  5. Step 5: Solve for x
    x = 479,968,405,388.33/722,809.76
  6. Step 6: Final answer
    x = 664,031.44

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1.5x scale

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.