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Finding the Fourth Proportional to 604,987.52, 907,481.28 and 161,744

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Solution

The fourth proportional to 604,987.52, 907,481.28 and 161,744 is: 242,616

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,987.52 : 907,481.28 = 161,744 : x
  2. Step 2: Convert to fraction form
    604,987.52/907,481.28 = 161,744/x
  3. Step 3: Cross multiply
    604,987.52x = 907,481.28 × 161,744
  4. Step 4: Simplify right side
    604,987.52x = 146,779,652,152.32
  5. Step 5: Solve for x
    x = 146,779,652,152.32/604,987.52
  6. Step 6: Final answer
    x = 242,616

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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.