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Finding the Fourth Proportional to 411,572.55, 617,669.87 and 175,081.71

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Solution

The fourth proportional to 411,572.55, 617,669.87 and 175,081.71 is: 262,754.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,572.55 : 617,669.87 = 175,081.71 : x
  2. Step 2: Convert to fraction form
    411,572.55/617,669.87 = 175,081.71/x
  3. Step 3: Cross multiply
    411,572.55x = 617,669.87 × 175,081.71
  4. Step 4: Simplify right side
    411,572.55x = 108,142,697,055.08
  5. Step 5: Solve for x
    x = 108,142,697,055.08/411,572.55
  6. Step 6: Final answer
    x = 262,754.88

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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.