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Finding the Fourth Proportional to 863,674.74, 1,191,873.21 and 481,726.26

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Solution

The fourth proportional to 863,674.74, 1,191,873.21 and 481,726.26 is: 664,783.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,674.74 : 1,191,873.21 = 481,726.26 : x
  2. Step 2: Convert to fraction form
    863,674.74/1,191,873.21 = 481,726.26/x
  3. Step 3: Cross multiply
    863,674.74x = 1,191,873.21 × 481,726.26
  4. Step 4: Simplify right side
    863,674.74x = 574,156,623,847.50
  5. Step 5: Solve for x
    x = 574,156,623,847.50/863,674.74
  6. Step 6: Final answer
    x = 664,783.39

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Double scale
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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.