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Finding the Fourth Proportional to 432,067.76, 596,087.21 and 270,641.78

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Solution

The fourth proportional to 432,067.76, 596,087.21 and 270,641.78 is: 373,381.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,067.76 : 596,087.21 = 270,641.78 : x
  2. Step 2: Convert to fraction form
    432,067.76/596,087.21 = 270,641.78/x
  3. Step 3: Cross multiply
    432,067.76x = 596,087.21 × 270,641.78
  4. Step 4: Simplify right side
    432,067.76x = 161,326,103,549.63
  5. Step 5: Solve for x
    x = 161,326,103,549.63/432,067.76
  6. Step 6: Final answer
    x = 373,381.49

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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.