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Finding the Fourth Proportional to 401,190.30, 601,047.33 and 251,402.67

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Solution

The fourth proportional to 401,190.30, 601,047.33 and 251,402.67 is: 376,641.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,190.30 : 601,047.33 = 251,402.67 : x
  2. Step 2: Convert to fraction form
    401,190.30/601,047.33 = 251,402.67/x
  3. Step 3: Cross multiply
    401,190.30x = 601,047.33 × 251,402.67
  4. Step 4: Simplify right side
    401,190.30x = 151,104,903,558.37
  5. Step 5: Solve for x
    x = 151,104,903,558.37/401,190.30
  6. Step 6: Final answer
    x = 376,641.47

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1.5x scale

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.