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Finding the Fourth Proportional to 411,975.49, 617,236.45 and 360,803.53

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Solution

The fourth proportional to 411,975.49, 617,236.45 and 360,803.53 is: 540,568.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,975.49 : 617,236.45 = 360,803.53 : x
  2. Step 2: Convert to fraction form
    411,975.49/617,236.45 = 360,803.53/x
  3. Step 3: Cross multiply
    411,975.49x = 617,236.45 × 360,803.53
  4. Step 4: Simplify right side
    411,975.49x = 222,701,090,004.67
  5. Step 5: Solve for x
    x = 222,701,090,004.67/411,975.49
  6. Step 6: Final answer
    x = 540,568.78

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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.