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Finding the Fourth Proportional to 400,973.43, 553,343.33 and 219,692.22

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Solution

The fourth proportional to 400,973.43, 553,343.33 and 219,692.22 is: 303,175.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,973.43 : 553,343.33 = 219,692.22 : x
  2. Step 2: Convert to fraction form
    400,973.43/553,343.33 = 219,692.22/x
  3. Step 3: Cross multiply
    400,973.43x = 553,343.33 × 219,692.22
  4. Step 4: Simplify right side
    400,973.43x = 121,565,223,491.43
  5. Step 5: Solve for x
    x = 121,565,223,491.43/400,973.43
  6. Step 6: Final answer
    x = 303,175.26

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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.