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Finding the Fourth Proportional to 356,421.66, 491,861.88 and 195,282.81

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Solution

The fourth proportional to 356,421.66, 491,861.88 and 195,282.81 is: 269,490.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,421.66 : 491,861.88 = 195,282.81 : x
  2. Step 2: Convert to fraction form
    356,421.66/491,861.88 = 195,282.81/x
  3. Step 3: Cross multiply
    356,421.66x = 491,861.88 × 195,282.81
  4. Step 4: Simplify right side
    356,421.66x = 96,052,170,058.28
  5. Step 5: Solve for x
    x = 96,052,170,058.28/356,421.66
  6. Step 6: Final answer
    x = 269,490.27

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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.