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Finding the Fourth Proportional to 626,395.74, 864,797.37 and 411,905.71

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Solution

The fourth proportional to 626,395.74, 864,797.37 and 411,905.71 is: 568,674.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,395.74 : 864,797.37 = 411,905.71 : x
  2. Step 2: Convert to fraction form
    626,395.74/864,797.37 = 411,905.71/x
  3. Step 3: Cross multiply
    626,395.74x = 864,797.37 × 411,905.71
  4. Step 4: Simplify right side
    626,395.74x = 356,214,974,695.98
  5. Step 5: Solve for x
    x = 356,214,974,695.98/626,395.74
  6. Step 6: Final answer
    x = 568,674.01

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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.