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Finding the Fourth Proportional to 919,152.70, 1,377,252.82 and 866,008.60

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Solution

The fourth proportional to 919,152.70, 1,377,252.82 and 866,008.60 is: 1,297,622.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,152.70 : 1,377,252.82 = 866,008.60 : x
  2. Step 2: Convert to fraction form
    919,152.70/1,377,252.82 = 866,008.60/x
  3. Step 3: Cross multiply
    919,152.70x = 1,377,252.82 × 866,008.60
  4. Step 4: Simplify right side
    919,152.70x = 1,192,712,786,494.25
  5. Step 5: Solve for x
    x = 1,192,712,786,494.25/919,152.70
  6. Step 6: Final answer
    x = 1,297,622.02

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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.