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Finding the Fourth Proportional to 440,605.60, 660,536.88 and 191,099.68

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Solution

The fourth proportional to 440,605.60, 660,536.88 and 191,099.68 is: 286,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,605.60 : 660,536.88 = 191,099.68 : x
  2. Step 2: Convert to fraction form
    440,605.60/660,536.88 = 191,099.68/x
  3. Step 3: Cross multiply
    440,605.60x = 660,536.88 × 191,099.68
  4. Step 4: Simplify right side
    440,605.60x = 126,228,386,396.20
  5. Step 5: Solve for x
    x = 126,228,386,396.20/440,605.60
  6. Step 6: Final answer
    x = 286,488.38

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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.