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Finding the Fourth Proportional to 605,786.60, 907,902.30 and 368,877.80

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Solution

The fourth proportional to 605,786.60, 907,902.30 and 368,877.80 is: 552,843.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,786.60 : 907,902.30 = 368,877.80 : x
  2. Step 2: Convert to fraction form
    605,786.60/907,902.30 = 368,877.80/x
  3. Step 3: Cross multiply
    605,786.60x = 907,902.30 × 368,877.80
  4. Step 4: Simplify right side
    605,786.60x = 334,905,003,038.94
  5. Step 5: Solve for x
    x = 334,905,003,038.94/605,786.60
  6. Step 6: Final answer
    x = 552,843.20

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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.