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Finding the Fourth Proportional to 374,735.49, 517,121.98 and 213,642.42

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Solution

The fourth proportional to 374,735.49, 517,121.98 and 213,642.42 is: 294,819.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,735.49 : 517,121.98 = 213,642.42 : x
  2. Step 2: Convert to fraction form
    374,735.49/517,121.98 = 213,642.42/x
  3. Step 3: Cross multiply
    374,735.49x = 517,121.98 × 213,642.42
  4. Step 4: Simplify right side
    374,735.49x = 110,479,191,242.39
  5. Step 5: Solve for x
    x = 110,479,191,242.39/374,735.49
  6. Step 6: Final answer
    x = 294,819.13

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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.