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Finding the Fourth Proportional to 439,595.34, 606,641.91 and 238,391.34

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Solution

The fourth proportional to 439,595.34, 606,641.91 and 238,391.34 is: 328,980.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,595.34 : 606,641.91 = 238,391.34 : x
  2. Step 2: Convert to fraction form
    439,595.34/606,641.91 = 238,391.34/x
  3. Step 3: Cross multiply
    439,595.34x = 606,641.91 × 238,391.34
  4. Step 4: Simplify right side
    439,595.34x = 144,618,177,825.06
  5. Step 5: Solve for x
    x = 144,618,177,825.06/439,595.34
  6. Step 6: Final answer
    x = 328,980.23

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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.