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Finding the Fourth Proportional to 704,217.64, 971,817.54 and 381,926.44

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Solution

The fourth proportional to 704,217.64, 971,817.54 and 381,926.44 is: 527,056.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,217.64 : 971,817.54 = 381,926.44 : x
  2. Step 2: Convert to fraction form
    704,217.64/971,817.54 = 381,926.44/x
  3. Step 3: Cross multiply
    704,217.64x = 971,817.54 × 381,926.44
  4. Step 4: Simplify right side
    704,217.64x = 371,162,813,381.76
  5. Step 5: Solve for x
    x = 371,162,813,381.76/704,217.64
  6. Step 6: Final answer
    x = 527,056.97

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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.