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Finding the Fourth Proportional to 476,072.64, 656,877.60 and 274,752

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Solution

The fourth proportional to 476,072.64, 656,877.60 and 274,752 is: 379,098.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,072.64 : 656,877.60 = 274,752 : x
  2. Step 2: Convert to fraction form
    476,072.64/656,877.60 = 274,752/x
  3. Step 3: Cross multiply
    476,072.64x = 656,877.60 × 274,752
  4. Step 4: Simplify right side
    476,072.64x = 180,478,434,355.20
  5. Step 5: Solve for x
    x = 180,478,434,355.20/476,072.64
  6. Step 6: Final answer
    x = 379,098.52

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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.