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Finding the Fourth Proportional to 471,211.20, 650,256.64 and 256,345.76

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Solution

The fourth proportional to 471,211.20, 650,256.64 and 256,345.76 is: 353,749.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,211.20 : 650,256.64 = 256,345.76 : x
  2. Step 2: Convert to fraction form
    471,211.20/650,256.64 = 256,345.76/x
  3. Step 3: Cross multiply
    471,211.20x = 650,256.64 × 256,345.76
  4. Step 4: Simplify right side
    471,211.20x = 166,690,532,575.85
  5. Step 5: Solve for x
    x = 166,690,532,575.85/471,211.20
  6. Step 6: Final answer
    x = 353,749.09

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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.