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Finding the Fourth Proportional to 357,508.98, 493,366.41 and 196,367.76

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Solution

The fourth proportional to 357,508.98, 493,366.41 and 196,367.76 is: 270,989.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,508.98 : 493,366.41 = 196,367.76 : x
  2. Step 2: Convert to fraction form
    357,508.98/493,366.41 = 196,367.76/x
  3. Step 3: Cross multiply
    357,508.98x = 493,366.41 × 196,367.76
  4. Step 4: Simplify right side
    357,508.98x = 96,881,256,790.94
  5. Step 5: Solve for x
    x = 96,881,256,790.94/357,508.98
  6. Step 6: Final answer
    x = 270,989.72

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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.