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Finding the Fourth Proportional to 884,705.76, 1,327,058.64 and 219,857.76

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Solution

The fourth proportional to 884,705.76, 1,327,058.64 and 219,857.76 is: 329,786.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,705.76 : 1,327,058.64 = 219,857.76 : x
  2. Step 2: Convert to fraction form
    884,705.76/1,327,058.64 = 219,857.76/x
  3. Step 3: Cross multiply
    884,705.76x = 1,327,058.64 × 219,857.76
  4. Step 4: Simplify right side
    884,705.76x = 291,764,139,979.05
  5. Step 5: Solve for x
    x = 291,764,139,979.05/884,705.76
  6. Step 6: Final answer
    x = 329,786.64

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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.