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Finding the Fourth Proportional to 606,826.55, 910,508.40 and 318,570.39

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Solution

The fourth proportional to 606,826.55, 910,508.40 and 318,570.39 is: 477,996.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,826.55 : 910,508.40 = 318,570.39 : x
  2. Step 2: Convert to fraction form
    606,826.55/910,508.40 = 318,570.39/x
  3. Step 3: Cross multiply
    606,826.55x = 910,508.40 × 318,570.39
  4. Step 4: Simplify right side
    606,826.55x = 290,061,016,086.28
  5. Step 5: Solve for x
    x = 290,061,016,086.28/606,826.55
  6. Step 6: Final answer
    x = 477,996.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.