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Finding the Fourth Proportional to 400,682.49, 552,970.95 and 228,604.25

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Solution

The fourth proportional to 400,682.49, 552,970.95 and 228,604.25 is: 315,490.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,682.49 : 552,970.95 = 228,604.25 : x
  2. Step 2: Convert to fraction form
    400,682.49/552,970.95 = 228,604.25/x
  3. Step 3: Cross multiply
    400,682.49x = 552,970.95 × 228,604.25
  4. Step 4: Simplify right side
    400,682.49x = 126,411,507,592.56
  5. Step 5: Solve for x
    x = 126,411,507,592.56/400,682.49
  6. Step 6: Final answer
    x = 315,490.47

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1.5x scale

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.