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Finding the Fourth Proportional to 880,373.64, 1,215,205.02 and 517,782

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Solution

The fourth proportional to 880,373.64, 1,215,205.02 and 517,782 is: 714,709.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,373.64 : 1,215,205.02 = 517,782 : x
  2. Step 2: Convert to fraction form
    880,373.64/1,215,205.02 = 517,782/x
  3. Step 3: Cross multiply
    880,373.64x = 1,215,205.02 × 517,782
  4. Step 4: Simplify right side
    880,373.64x = 629,211,285,665.64
  5. Step 5: Solve for x
    x = 629,211,285,665.64/880,373.64
  6. Step 6: Final answer
    x = 714,709.37

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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.