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Finding the Fourth Proportional to 374,031.88, 561,878.22 and 231,982.15

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Solution

The fourth proportional to 374,031.88, 561,878.22 and 231,982.15 is: 348,488.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,031.88 : 561,878.22 = 231,982.15 : x
  2. Step 2: Convert to fraction form
    374,031.88/561,878.22 = 231,982.15/x
  3. Step 3: Cross multiply
    374,031.88x = 561,878.22 × 231,982.15
  4. Step 4: Simplify right side
    374,031.88x = 130,345,716,979.01
  5. Step 5: Solve for x
    x = 130,345,716,979.01/374,031.88
  6. Step 6: Final answer
    x = 348,488.25

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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.