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Finding the Fourth Proportional to 411,338.61, 617,154.05 and 183,613.59

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Solution

The fourth proportional to 411,338.61, 617,154.05 and 183,613.59 is: 275,485.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,338.61 : 617,154.05 = 183,613.59 : x
  2. Step 2: Convert to fraction form
    411,338.61/617,154.05 = 183,613.59/x
  3. Step 3: Cross multiply
    411,338.61x = 617,154.05 × 183,613.59
  4. Step 4: Simplify right side
    411,338.61x = 113,317,870,703.54
  5. Step 5: Solve for x
    x = 113,317,870,703.54/411,338.61
  6. Step 6: Final answer
    x = 275,485.62

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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.