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Finding the Fourth Proportional to 458,549.48, 687,590.08 and 269,379.32

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Solution

The fourth proportional to 458,549.48, 687,590.08 and 269,379.32 is: 403,931.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,549.48 : 687,590.08 = 269,379.32 : x
  2. Step 2: Convert to fraction form
    458,549.48/687,590.08 = 269,379.32/x
  3. Step 3: Cross multiply
    458,549.48x = 687,590.08 × 269,379.32
  4. Step 4: Simplify right side
    458,549.48x = 185,222,548,189.15
  5. Step 5: Solve for x
    x = 185,222,548,189.15/458,549.48
  6. Step 6: Final answer
    x = 403,931.43

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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.