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Finding the Fourth Proportional to 423,559.67, 635,463.77 and 170,710.34

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Solution

The fourth proportional to 423,559.67, 635,463.77 and 170,710.34 is: 256,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,559.67 : 635,463.77 = 170,710.34 : x
  2. Step 2: Convert to fraction form
    423,559.67/635,463.77 = 170,710.34/x
  3. Step 3: Cross multiply
    423,559.67x = 635,463.77 × 170,710.34
  4. Step 4: Simplify right side
    423,559.67x = 108,480,232,203.51
  5. Step 5: Solve for x
    x = 108,480,232,203.51/423,559.67
  6. Step 6: Final answer
    x = 256,115.59

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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.