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Finding the Fourth Proportional to 431,872.39, 595,982.40 and 240,885.64

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Solution

The fourth proportional to 431,872.39, 595,982.40 and 240,885.64 is: 332,421.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,872.39 : 595,982.40 = 240,885.64 : x
  2. Step 2: Convert to fraction form
    431,872.39/595,982.40 = 240,885.64/x
  3. Step 3: Cross multiply
    431,872.39x = 595,982.40 × 240,885.64
  4. Step 4: Simplify right side
    431,872.39x = 143,563,601,852.74
  5. Step 5: Solve for x
    x = 143,563,601,852.74/431,872.39
  6. Step 6: Final answer
    x = 332,421.35

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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.