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Finding the Fourth Proportional to 665,834.26, 918,854.50 and 364,028.26

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Solution

The fourth proportional to 665,834.26, 918,854.50 and 364,028.26 is: 502,360.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,834.26 : 918,854.50 = 364,028.26 : x
  2. Step 2: Convert to fraction form
    665,834.26/918,854.50 = 364,028.26/x
  3. Step 3: Cross multiply
    665,834.26x = 918,854.50 × 364,028.26
  4. Step 4: Simplify right side
    665,834.26x = 334,489,004,828.17
  5. Step 5: Solve for x
    x = 334,489,004,828.17/665,834.26
  6. Step 6: Final answer
    x = 502,360.76

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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.