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Finding the Fourth Proportional to 906,135.02, 1,250,434.31 and 498,234

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Solution

The fourth proportional to 906,135.02, 1,250,434.31 and 498,234 is: 687,545.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,135.02 : 1,250,434.31 = 498,234 : x
  2. Step 2: Convert to fraction form
    906,135.02/1,250,434.31 = 498,234/x
  3. Step 3: Cross multiply
    906,135.02x = 1,250,434.31 × 498,234
  4. Step 4: Simplify right side
    906,135.02x = 623,008,885,517.37
  5. Step 5: Solve for x
    x = 623,008,885,517.37/906,135.02
  6. Step 6: Final answer
    x = 687,545.32

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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.