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Finding the Fourth Proportional to 374,879.64, 517,346.70 and 213,758.52

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Solution

The fourth proportional to 374,879.64, 517,346.70 and 213,758.52 is: 294,994.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,879.64 : 517,346.70 = 213,758.52 : x
  2. Step 2: Convert to fraction form
    374,879.64/517,346.70 = 213,758.52/x
  3. Step 3: Cross multiply
    374,879.64x = 517,346.70 × 213,758.52
  4. Step 4: Simplify right side
    374,879.64x = 110,587,264,918.88
  5. Step 5: Solve for x
    x = 110,587,264,918.88/374,879.64
  6. Step 6: Final answer
    x = 294,994.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.