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Finding the Fourth Proportional to 1,787,489.01, 2,466,782.91 and 971,747.46

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Solution

The fourth proportional to 1,787,489.01, 2,466,782.91 and 971,747.46 is: 1,341,037.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,787,489.01 : 2,466,782.91 = 971,747.46 : x
  2. Step 2: Convert to fraction form
    1,787,489.01/2,466,782.91 = 971,747.46/x
  3. Step 3: Cross multiply
    1,787,489.01x = 2,466,782.91 × 971,747.46
  4. Step 4: Simplify right side
    1,787,489.01x = 2,397,090,027,163.91
  5. Step 5: Solve for x
    x = 2,397,090,027,163.91/1,787,489.01
  6. Step 6: Final answer
    x = 1,341,037.63

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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.