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Finding the Fourth Proportional to 399,777.64, 551,692.21 and 227,695.57

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Solution

The fourth proportional to 399,777.64, 551,692.21 and 227,695.57 is: 314,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,777.64 : 551,692.21 = 227,695.57 : x
  2. Step 2: Convert to fraction form
    399,777.64/551,692.21 = 227,695.57/x
  3. Step 3: Cross multiply
    399,777.64x = 551,692.21 × 227,695.57
  4. Step 4: Simplify right side
    399,777.64x = 125,617,872,220.51
  5. Step 5: Solve for x
    x = 125,617,872,220.51/399,777.64
  6. Step 6: Final answer
    x = 314,219.36

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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.