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Finding the Fourth Proportional to 551,804.90, 826,613.85 and 486,049.10

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Solution

The fourth proportional to 551,804.90, 826,613.85 and 486,049.10 is: 728,110.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,804.90 : 826,613.85 = 486,049.10 : x
  2. Step 2: Convert to fraction form
    551,804.90/826,613.85 = 486,049.10/x
  3. Step 3: Cross multiply
    551,804.90x = 826,613.85 × 486,049.10
  4. Step 4: Simplify right side
    551,804.90x = 401,774,917,840.04
  5. Step 5: Solve for x
    x = 401,774,917,840.04/551,804.90
  6. Step 6: Final answer
    x = 728,110.46

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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.