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Finding the Fourth Proportional to 419,866.32, 579,373.56 and 236,085.36

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Solution

The fourth proportional to 419,866.32, 579,373.56 and 236,085.36 is: 325,774.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,866.32 : 579,373.56 = 236,085.36 : x
  2. Step 2: Convert to fraction form
    419,866.32/579,373.56 = 236,085.36/x
  3. Step 3: Cross multiply
    419,866.32x = 579,373.56 × 236,085.36
  4. Step 4: Simplify right side
    419,866.32x = 136,781,615,487.08
  5. Step 5: Solve for x
    x = 136,781,615,487.08/419,866.32
  6. Step 6: Final answer
    x = 325,774.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.