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Finding the Fourth Proportional to 605,196.20, 907,794.30 and 555,429.80

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Solution

The fourth proportional to 605,196.20, 907,794.30 and 555,429.80 is: 833,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,196.20 : 907,794.30 = 555,429.80 : x
  2. Step 2: Convert to fraction form
    605,196.20/907,794.30 = 555,429.80/x
  3. Step 3: Cross multiply
    605,196.20x = 907,794.30 × 555,429.80
  4. Step 4: Simplify right side
    605,196.20x = 504,216,006,490.14
  5. Step 5: Solve for x
    x = 504,216,006,490.14/605,196.20
  6. Step 6: Final answer
    x = 833,144.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.