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Finding the Fourth Proportional to 319,471.44, 440,852.76 and 176,202.96

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Solution

The fourth proportional to 319,471.44, 440,852.76 and 176,202.96 is: 243,150.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,471.44 : 440,852.76 = 176,202.96 : x
  2. Step 2: Convert to fraction form
    319,471.44/440,852.76 = 176,202.96/x
  3. Step 3: Cross multiply
    319,471.44x = 440,852.76 × 176,202.96
  4. Step 4: Simplify right side
    319,471.44x = 77,679,561,236.17
  5. Step 5: Solve for x
    x = 77,679,561,236.17/319,471.44
  6. Step 6: Final answer
    x = 243,150.25

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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.