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Finding the Fourth Proportional to 357,545.92, 493,389.12 and 196,407.76

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Solution

The fourth proportional to 357,545.92, 493,389.12 and 196,407.76 is: 271,029.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,545.92 : 493,389.12 = 196,407.76 : x
  2. Step 2: Convert to fraction form
    357,545.92/493,389.12 = 196,407.76/x
  3. Step 3: Cross multiply
    357,545.92x = 493,389.12 × 196,407.76
  4. Step 4: Simplify right side
    357,545.92x = 96,905,451,867.57
  5. Step 5: Solve for x
    x = 96,905,451,867.57/357,545.92
  6. Step 6: Final answer
    x = 271,029.39

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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.