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Finding the Fourth Proportional to 610,536.42, 915,944.19 and 211,176.84

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Solution

The fourth proportional to 610,536.42, 915,944.19 and 211,176.84 is: 316,813.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,536.42 : 915,944.19 = 211,176.84 : x
  2. Step 2: Convert to fraction form
    610,536.42/915,944.19 = 211,176.84/x
  3. Step 3: Cross multiply
    610,536.42x = 915,944.19 × 211,176.84
  4. Step 4: Simplify right side
    610,536.42x = 193,426,199,660.56
  5. Step 5: Solve for x
    x = 193,426,199,660.56/610,536.42
  6. Step 6: Final answer
    x = 316,813.53

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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.