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Finding the Fourth Proportional to 514,826.67, 709,673.25 and 361,434.54

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Solution

The fourth proportional to 514,826.67, 709,673.25 and 361,434.54 is: 498,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,826.67 : 709,673.25 = 361,434.54 : x
  2. Step 2: Convert to fraction form
    514,826.67/709,673.25 = 361,434.54/x
  3. Step 3: Cross multiply
    514,826.67x = 709,673.25 × 361,434.54
  4. Step 4: Simplify right side
    514,826.67x = 256,500,421,115.69
  5. Step 5: Solve for x
    x = 256,500,421,115.69/514,826.67
  6. Step 6: Final answer
    x = 498,226.76

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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.