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Finding the Fourth Proportional to 400,058.60, 552,080.84 and 218,770.64

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Solution

The fourth proportional to 400,058.60, 552,080.84 and 218,770.64 is: 301,903.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,058.60 : 552,080.84 = 218,770.64 : x
  2. Step 2: Convert to fraction form
    400,058.60/552,080.84 = 218,770.64/x
  3. Step 3: Cross multiply
    400,058.60x = 552,080.84 × 218,770.64
  4. Step 4: Simplify right side
    400,058.60x = 120,779,074,844.28
  5. Step 5: Solve for x
    x = 120,779,074,844.28/400,058.60
  6. Step 6: Final answer
    x = 301,903.46

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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.