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Finding the Fourth Proportional to 400,892.40, 552,788.19 and 255,467.84

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Solution

The fourth proportional to 400,892.40, 552,788.19 and 255,467.84 is: 352,263.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,892.40 : 552,788.19 = 255,467.84 : x
  2. Step 2: Convert to fraction form
    400,892.40/552,788.19 = 255,467.84/x
  3. Step 3: Cross multiply
    400,892.40x = 552,788.19 × 255,467.84
  4. Step 4: Simplify right side
    400,892.40x = 141,219,604,876.81
  5. Step 5: Solve for x
    x = 141,219,604,876.81/400,892.40
  6. Step 6: Final answer
    x = 352,263.11

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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.