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Finding the Fourth Proportional to 467,841, 645,581.34 and 276,820.92

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Solution

The fourth proportional to 467,841, 645,581.34 and 276,820.92 is: 381,989.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,841 : 645,581.34 = 276,820.92 : x
  2. Step 2: Convert to fraction form
    467,841/645,581.34 = 276,820.92/x
  3. Step 3: Cross multiply
    467,841x = 645,581.34 × 276,820.92
  4. Step 4: Simplify right side
    467,841x = 178,710,420,473.63
  5. Step 5: Solve for x
    x = 178,710,420,473.63/467,841
  6. Step 6: Final answer
    x = 381,989.65

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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.