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Finding the Fourth Proportional to 577,621.78, 866,858.37 and 274,016.89

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Solution

The fourth proportional to 577,621.78, 866,858.37 and 274,016.89 is: 411,227.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,621.78 : 866,858.37 = 274,016.89 : x
  2. Step 2: Convert to fraction form
    577,621.78/866,858.37 = 274,016.89/x
  3. Step 3: Cross multiply
    577,621.78x = 866,858.37 × 274,016.89
  4. Step 4: Simplify right side
    577,621.78x = 237,533,834,617.87
  5. Step 5: Solve for x
    x = 237,533,834,617.87/577,621.78
  6. Step 6: Final answer
    x = 411,227.28

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1.5x scale

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.