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Finding the Fourth Proportional to 439,765.41, 606,877.43 and 238,561.41

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Solution

The fourth proportional to 439,765.41, 606,877.43 and 238,561.41 is: 329,215.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,765.41 : 606,877.43 = 238,561.41 : x
  2. Step 2: Convert to fraction form
    439,765.41/606,877.43 = 238,561.41/x
  3. Step 3: Cross multiply
    439,765.41x = 606,877.43 × 238,561.41
  4. Step 4: Simplify right side
    439,765.41x = 144,777,535,397.98
  5. Step 5: Solve for x
    x = 144,777,535,397.98/439,765.41
  6. Step 6: Final answer
    x = 329,215.38

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1.5x scale

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.