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Finding the Fourth Proportional to 401,037.59, 553,431.99 and 219,748.04

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Solution

The fourth proportional to 401,037.59, 553,431.99 and 219,748.04 is: 303,252.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,037.59 : 553,431.99 = 219,748.04 : x
  2. Step 2: Convert to fraction form
    401,037.59/553,431.99 = 219,748.04/x
  3. Step 3: Cross multiply
    401,037.59x = 553,431.99 × 219,748.04
  4. Step 4: Simplify right side
    401,037.59x = 121,615,595,075.80
  5. Step 5: Solve for x
    x = 121,615,595,075.80/401,037.59
  6. Step 6: Final answer
    x = 303,252.36

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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.