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Finding the Fourth Proportional to 421,099.96, 581,093.46 and 230,114.92

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Solution

The fourth proportional to 421,099.96, 581,093.46 and 230,114.92 is: 317,545.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,099.96 : 581,093.46 = 230,114.92 : x
  2. Step 2: Convert to fraction form
    421,099.96/581,093.46 = 230,114.92/x
  3. Step 3: Cross multiply
    421,099.96x = 581,093.46 × 230,114.92
  4. Step 4: Simplify right side
    421,099.96x = 133,718,275,060.42
  5. Step 5: Solve for x
    x = 133,718,275,060.42/421,099.96
  6. Step 6: Final answer
    x = 317,545.21

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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.