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Finding the Fourth Proportional to 423,859.20, 635,558.40 and 174,566.40

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Solution

The fourth proportional to 423,859.20, 635,558.40 and 174,566.40 is: 261,754.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,859.20 : 635,558.40 = 174,566.40 : x
  2. Step 2: Convert to fraction form
    423,859.20/635,558.40 = 174,566.40/x
  3. Step 3: Cross multiply
    423,859.20x = 635,558.40 × 174,566.40
  4. Step 4: Simplify right side
    423,859.20x = 110,947,141,877.76
  5. Step 5: Solve for x
    x = 110,947,141,877.76/423,859.20
  6. Step 6: Final answer
    x = 261,754.71

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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.