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Finding the Fourth Proportional to 401,356.94, 553,877.94 and 220,068.41

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Solution

The fourth proportional to 401,356.94, 553,877.94 and 220,068.41 is: 303,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,356.94 : 553,877.94 = 220,068.41 : x
  2. Step 2: Convert to fraction form
    401,356.94/553,877.94 = 220,068.41/x
  3. Step 3: Cross multiply
    401,356.94x = 553,877.94 × 220,068.41
  4. Step 4: Simplify right side
    401,356.94x = 121,891,037,589.88
  5. Step 5: Solve for x
    x = 121,891,037,589.88/401,356.94
  6. Step 6: Final answer
    x = 303,697.35

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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.