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Finding the Fourth Proportional to 626,535.72, 863,965.50 and 371,837.70

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Solution

The fourth proportional to 626,535.72, 863,965.50 and 371,837.70 is: 512,748.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,535.72 : 863,965.50 = 371,837.70 : x
  2. Step 2: Convert to fraction form
    626,535.72/863,965.50 = 371,837.70/x
  3. Step 3: Cross multiply
    626,535.72x = 863,965.50 × 371,837.70
  4. Step 4: Simplify right side
    626,535.72x = 321,254,944,399.35
  5. Step 5: Solve for x
    x = 321,254,944,399.35/626,535.72
  6. Step 6: Final answer
    x = 512,748.01

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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.