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Finding the Fourth Proportional to 617,673.96, 926,670.64 and 361,722.66

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Solution

The fourth proportional to 617,673.96, 926,670.64 and 361,722.66 is: 542,677.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,673.96 : 926,670.64 = 361,722.66 : x
  2. Step 2: Convert to fraction form
    617,673.96/926,670.64 = 361,722.66/x
  3. Step 3: Cross multiply
    617,673.96x = 926,670.64 × 361,722.66
  4. Step 4: Simplify right side
    617,673.96x = 335,197,768,844.70
  5. Step 5: Solve for x
    x = 335,197,768,844.70/617,673.96
  6. Step 6: Final answer
    x = 542,677.51

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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.