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Finding the Fourth Proportional to 604,932.60, 907,485.30 and 205,591.80

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Solution

The fourth proportional to 604,932.60, 907,485.30 and 205,591.80 is: 308,417.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,932.60 : 907,485.30 = 205,591.80 : x
  2. Step 2: Convert to fraction form
    604,932.60/907,485.30 = 205,591.80/x
  3. Step 3: Cross multiply
    604,932.60x = 907,485.30 × 205,591.80
  4. Step 4: Simplify right side
    604,932.60x = 186,571,536,300.54
  5. Step 5: Solve for x
    x = 186,571,536,300.54/604,932.60
  6. Step 6: Final answer
    x = 308,417.06

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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.