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Finding the Fourth Proportional to 744,672.12, 1,027,604.07 and 417,954.77

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Solution

The fourth proportional to 744,672.12, 1,027,604.07 and 417,954.77 is: 576,753.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,672.12 : 1,027,604.07 = 417,954.77 : x
  2. Step 2: Convert to fraction form
    744,672.12/1,027,604.07 = 417,954.77/x
  3. Step 3: Cross multiply
    744,672.12x = 1,027,604.07 × 417,954.77
  4. Step 4: Simplify right side
    744,672.12x = 429,492,022,727.91
  5. Step 5: Solve for x
    x = 429,492,022,727.91/744,672.12
  6. Step 6: Final answer
    x = 576,753.19

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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.