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Finding the Fourth Proportional to 356,130.98, 491,442.08 and 194,955.18

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Solution

The fourth proportional to 356,130.98, 491,442.08 and 194,955.18 is: 269,027.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,130.98 : 491,442.08 = 194,955.18 : x
  2. Step 2: Convert to fraction form
    356,130.98/491,442.08 = 194,955.18/x
  3. Step 3: Cross multiply
    356,130.98x = 491,442.08 × 194,955.18
  4. Step 4: Simplify right side
    356,130.98x = 95,809,179,165.97
  5. Step 5: Solve for x
    x = 95,809,179,165.97/356,130.98
  6. Step 6: Final answer
    x = 269,027.93

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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.