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Finding the Fourth Proportional to 513,445.92, 770,500.17 and 276,953.46

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Solution

The fourth proportional to 513,445.92, 770,500.17 and 276,953.46 is: 415,608.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,445.92 : 770,500.17 = 276,953.46 : x
  2. Step 2: Convert to fraction form
    513,445.92/770,500.17 = 276,953.46/x
  3. Step 3: Cross multiply
    513,445.92x = 770,500.17 × 276,953.46
  4. Step 4: Simplify right side
    513,445.92x = 213,392,688,012.09
  5. Step 5: Solve for x
    x = 213,392,688,012.09/513,445.92
  6. Step 6: Final answer
    x = 415,608.89

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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.