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Finding the Fourth Proportional to 866,572.64, 1,195,847.82 and 479,378

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Solution

The fourth proportional to 866,572.64, 1,195,847.82 and 479,378 is: 661,529.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,572.64 : 1,195,847.82 = 479,378 : x
  2. Step 2: Convert to fraction form
    866,572.64/1,195,847.82 = 479,378/x
  3. Step 3: Cross multiply
    866,572.64x = 1,195,847.82 × 479,378
  4. Step 4: Simplify right side
    866,572.64x = 573,263,136,255.96
  5. Step 5: Solve for x
    x = 573,263,136,255.96/866,572.64
  6. Step 6: Final answer
    x = 661,529.24

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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.