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Finding the Fourth Proportional to 609,681.78, 914,611.77 and 293,878.98

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Solution

The fourth proportional to 609,681.78, 914,611.77 and 293,878.98 is: 440,861.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,681.78 : 914,611.77 = 293,878.98 : x
  2. Step 2: Convert to fraction form
    609,681.78/914,611.77 = 293,878.98/x
  3. Step 3: Cross multiply
    609,681.78x = 914,611.77 × 293,878.98
  4. Step 4: Simplify right side
    609,681.78x = 268,785,174,063.60
  5. Step 5: Solve for x
    x = 268,785,174,063.60/609,681.78
  6. Step 6: Final answer
    x = 440,861.42

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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.