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Finding the Fourth Proportional to 668,871.27, 923,808.96 and 440,449.74

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Solution

The fourth proportional to 668,871.27, 923,808.96 and 440,449.74 is: 608,325.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,871.27 : 923,808.96 = 440,449.74 : x
  2. Step 2: Convert to fraction form
    668,871.27/923,808.96 = 440,449.74/x
  3. Step 3: Cross multiply
    668,871.27x = 923,808.96 × 440,449.74
  4. Step 4: Simplify right side
    668,871.27x = 406,891,416,241.67
  5. Step 5: Solve for x
    x = 406,891,416,241.67/668,871.27
  6. Step 6: Final answer
    x = 608,325.45

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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.