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Finding the Fourth Proportional to 401,031.58, 553,423.72 and 219,742.04

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Solution

The fourth proportional to 401,031.58, 553,423.72 and 219,742.04 is: 303,244.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,031.58 : 553,423.72 = 219,742.04 : x
  2. Step 2: Convert to fraction form
    401,031.58/553,423.72 = 219,742.04/x
  3. Step 3: Cross multiply
    401,031.58x = 553,423.72 × 219,742.04
  4. Step 4: Simplify right side
    401,031.58x = 121,610,457,217.19
  5. Step 5: Solve for x
    x = 121,610,457,217.19/401,031.58
  6. Step 6: Final answer
    x = 303,244.09

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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.