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Finding the Fourth Proportional to 347,535.58, 479,456.55 and 211,460.44

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Solution

The fourth proportional to 347,535.58, 479,456.55 and 211,460.44 is: 291,728.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,535.58 : 479,456.55 = 211,460.44 : x
  2. Step 2: Convert to fraction form
    347,535.58/479,456.55 = 211,460.44/x
  3. Step 3: Cross multiply
    347,535.58x = 479,456.55 × 211,460.44
  4. Step 4: Simplify right side
    347,535.58x = 101,386,093,023.88
  5. Step 5: Solve for x
    x = 101,386,093,023.88/347,535.58
  6. Step 6: Final answer
    x = 291,728.67

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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.