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Finding the Fourth Proportional to 295,622.70, 443,434.05 and 272,813.10

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Solution

The fourth proportional to 295,622.70, 443,434.05 and 272,813.10 is: 409,219.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,622.70 : 443,434.05 = 272,813.10 : x
  2. Step 2: Convert to fraction form
    295,622.70/443,434.05 = 272,813.10/x
  3. Step 3: Cross multiply
    295,622.70x = 443,434.05 × 272,813.10
  4. Step 4: Simplify right side
    295,622.70x = 120,974,617,826.06
  5. Step 5: Solve for x
    x = 120,974,617,826.06/295,622.70
  6. Step 6: Final answer
    x = 409,219.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.