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Finding the Fourth Proportional to 617,928.60, 924,924.60 and 440,781.60

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Solution

The fourth proportional to 617,928.60, 924,924.60 and 440,781.60 is: 659,768.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,928.60 : 924,924.60 = 440,781.60 : x
  2. Step 2: Convert to fraction form
    617,928.60/924,924.60 = 440,781.60/x
  3. Step 3: Cross multiply
    617,928.60x = 924,924.60 × 440,781.60
  4. Step 4: Simplify right side
    617,928.60x = 407,689,745,067.36
  5. Step 5: Solve for x
    x = 407,689,745,067.36/617,928.60
  6. Step 6: Final answer
    x = 659,768.37

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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.