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Finding the Fourth Proportional to 664,096.65, 916,449.12 and 377,616.66

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Solution

The fourth proportional to 664,096.65, 916,449.12 and 377,616.66 is: 521,108.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,096.65 : 916,449.12 = 377,616.66 : x
  2. Step 2: Convert to fraction form
    664,096.65/916,449.12 = 377,616.66/x
  3. Step 3: Cross multiply
    664,096.65x = 916,449.12 × 377,616.66
  4. Step 4: Simplify right side
    664,096.65x = 346,066,455,754.34
  5. Step 5: Solve for x
    x = 346,066,455,754.34/664,096.65
  6. Step 6: Final answer
    x = 521,108.57

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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.