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Finding the Fourth Proportional to 411,975.74, 617,236.82 and 360,803.78

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Solution

The fourth proportional to 411,975.74, 617,236.82 and 360,803.78 is: 540,569.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,975.74 : 617,236.82 = 360,803.78 : x
  2. Step 2: Convert to fraction form
    411,975.74/617,236.82 = 360,803.78/x
  3. Step 3: Cross multiply
    411,975.74x = 617,236.82 × 360,803.78
  4. Step 4: Simplify right side
    411,975.74x = 222,701,377,811.18
  5. Step 5: Solve for x
    x = 222,701,377,811.18/411,975.74
  6. Step 6: Final answer
    x = 540,569.16

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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.