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Finding the Fourth Proportional to 641,447.44, 961,506.78 and 527,935

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Solution

The fourth proportional to 641,447.44, 961,506.78 and 527,935 is: 791,355.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,447.44 : 961,506.78 = 527,935 : x
  2. Step 2: Convert to fraction form
    641,447.44/961,506.78 = 527,935/x
  3. Step 3: Cross multiply
    641,447.44x = 961,506.78 × 527,935
  4. Step 4: Simplify right side
    641,447.44x = 507,613,081,899.30
  5. Step 5: Solve for x
    x = 507,613,081,899.30/641,447.44
  6. Step 6: Final answer
    x = 791,355.69

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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.