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Finding the Fourth Proportional to 400,591.01, 552,815.55 and 219,302.37

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Solution

The fourth proportional to 400,591.01, 552,815.55 and 219,302.37 is: 302,637.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,591.01 : 552,815.55 = 219,302.37 : x
  2. Step 2: Convert to fraction form
    400,591.01/552,815.55 = 219,302.37/x
  3. Step 3: Cross multiply
    400,591.01x = 552,815.55 × 219,302.37
  4. Step 4: Simplify right side
    400,591.01x = 121,233,760,287.85
  5. Step 5: Solve for x
    x = 121,233,760,287.85/400,591.01
  6. Step 6: Final answer
    x = 302,637.25

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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.