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Finding the Fourth Proportional to 491,136.49, 677,763.48 and 273,341.53

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Solution

The fourth proportional to 491,136.49, 677,763.48 and 273,341.53 is: 377,208.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,136.49 : 677,763.48 = 273,341.53 : x
  2. Step 2: Convert to fraction form
    491,136.49/677,763.48 = 273,341.53/x
  3. Step 3: Cross multiply
    491,136.49x = 677,763.48 × 273,341.53
  4. Step 4: Simplify right side
    491,136.49x = 185,260,906,601.32
  5. Step 5: Solve for x
    x = 185,260,906,601.32/491,136.49
  6. Step 6: Final answer
    x = 377,208.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.