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Finding the Fourth Proportional to 432,062.38, 596,103.62 and 279,190.78

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Solution

The fourth proportional to 432,062.38, 596,103.62 and 279,190.78 is: 385,191.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,062.38 : 596,103.62 = 279,190.78 : x
  2. Step 2: Convert to fraction form
    432,062.38/596,103.62 = 279,190.78/x
  3. Step 3: Cross multiply
    432,062.38x = 596,103.62 × 279,190.78
  4. Step 4: Simplify right side
    432,062.38x = 166,426,634,628.62
  5. Step 5: Solve for x
    x = 166,426,634,628.62/432,062.38
  6. Step 6: Final answer
    x = 385,191.22

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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.