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Finding the Fourth Proportional to 408,987.02, 564,256.02 and 236,811.02

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Solution

The fourth proportional to 408,987.02, 564,256.02 and 236,811.02 is: 326,714.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,987.02 : 564,256.02 = 236,811.02 : x
  2. Step 2: Convert to fraction form
    408,987.02/564,256.02 = 236,811.02/x
  3. Step 3: Cross multiply
    408,987.02x = 564,256.02 × 236,811.02
  4. Step 4: Simplify right side
    408,987.02x = 133,622,043,291.07
  5. Step 5: Solve for x
    x = 133,622,043,291.07/408,987.02
  6. Step 6: Final answer
    x = 326,714.63

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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.