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Finding the Fourth Proportional to 319,965, 441,551.70 and 192,645.96

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Solution

The fourth proportional to 319,965, 441,551.70 and 192,645.96 is: 265,851.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,965 : 441,551.70 = 192,645.96 : x
  2. Step 2: Convert to fraction form
    319,965/441,551.70 = 192,645.96/x
  3. Step 3: Cross multiply
    319,965x = 441,551.70 × 192,645.96
  4. Step 4: Simplify right side
    319,965x = 85,063,151,136.13
  5. Step 5: Solve for x
    x = 85,063,151,136.13/319,965
  6. Step 6: Final answer
    x = 265,851.42

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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.