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Finding the Fourth Proportional to 664,376.72, 916,841.04 and 362,570.72

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Solution

The fourth proportional to 664,376.72, 916,841.04 and 362,570.72 is: 500,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,376.72 : 916,841.04 = 362,570.72 : x
  2. Step 2: Convert to fraction form
    664,376.72/916,841.04 = 362,570.72/x
  3. Step 3: Cross multiply
    664,376.72x = 916,841.04 × 362,570.72
  4. Step 4: Simplify right side
    664,376.72x = 332,419,715,998.35
  5. Step 5: Solve for x
    x = 332,419,715,998.35/664,376.72
  6. Step 6: Final answer
    x = 500,348.23

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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.