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Finding the Fourth Proportional to 356,897.21, 492,549.75 and 195,783.66

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Solution

The fourth proportional to 356,897.21, 492,549.75 and 195,783.66 is: 270,198.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,897.21 : 492,549.75 = 195,783.66 : x
  2. Step 2: Convert to fraction form
    356,897.21/492,549.75 = 195,783.66/x
  3. Step 3: Cross multiply
    356,897.21x = 492,549.75 × 195,783.66
  4. Step 4: Simplify right side
    356,897.21x = 96,433,192,787.09
  5. Step 5: Solve for x
    x = 96,433,192,787.09/356,897.21
  6. Step 6: Final answer
    x = 270,198.79

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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.