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Finding the Fourth Proportional to 404,279.60, 606,638.10 and 167,646.20

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Solution

The fourth proportional to 404,279.60, 606,638.10 and 167,646.20 is: 251,559.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,279.60 : 606,638.10 = 167,646.20 : x
  2. Step 2: Convert to fraction form
    404,279.60/606,638.10 = 167,646.20/x
  3. Step 3: Cross multiply
    404,279.60x = 606,638.10 × 167,646.20
  4. Step 4: Simplify right side
    404,279.60x = 101,700,572,240.22
  5. Step 5: Solve for x
    x = 101,700,572,240.22/404,279.60
  6. Step 6: Final answer
    x = 251,559.99

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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.