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Finding the Fourth Proportional to 340,596.12, 510,368.58 and 215,674.68

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Solution

The fourth proportional to 340,596.12, 510,368.58 and 215,674.68 is: 323,179.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,596.12 : 510,368.58 = 215,674.68 : x
  2. Step 2: Convert to fraction form
    340,596.12/510,368.58 = 215,674.68/x
  3. Step 3: Cross multiply
    340,596.12x = 510,368.58 × 215,674.68
  4. Step 4: Simplify right side
    340,596.12x = 110,073,580,173.55
  5. Step 5: Solve for x
    x = 110,073,580,173.55/340,596.12
  6. Step 6: Final answer
    x = 323,179.20

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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.