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Finding the Fourth Proportional to 356,076.84, 491,394.70 and 194,931.39

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Solution

The fourth proportional to 356,076.84, 491,394.70 and 194,931.39 is: 269,010.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,076.84 : 491,394.70 = 194,931.39 : x
  2. Step 2: Convert to fraction form
    356,076.84/491,394.70 = 194,931.39/x
  3. Step 3: Cross multiply
    356,076.84x = 491,394.70 × 194,931.39
  4. Step 4: Simplify right side
    356,076.84x = 95,788,251,909.63
  5. Step 5: Solve for x
    x = 95,788,251,909.63/356,076.84
  6. Step 6: Final answer
    x = 269,010.06

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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.