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Finding the Fourth Proportional to 375,531.12, 518,059.22 and 332,554.40

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Solution

The fourth proportional to 375,531.12, 518,059.22 and 332,554.40 is: 458,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,531.12 : 518,059.22 = 332,554.40 : x
  2. Step 2: Convert to fraction form
    375,531.12/518,059.22 = 332,554.40/x
  3. Step 3: Cross multiply
    375,531.12x = 518,059.22 × 332,554.40
  4. Step 4: Simplify right side
    375,531.12x = 172,282,873,071.57
  5. Step 5: Solve for x
    x = 172,282,873,071.57/375,531.12
  6. Step 6: Final answer
    x = 458,771.23

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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.