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Finding the Fourth Proportional to 319,608.70, 441,061.30 and 176,372.88

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Solution

The fourth proportional to 319,608.70, 441,061.30 and 176,372.88 is: 243,395.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,608.70 : 441,061.30 = 176,372.88 : x
  2. Step 2: Convert to fraction form
    319,608.70/441,061.30 = 176,372.88/x
  3. Step 3: Cross multiply
    319,608.70x = 441,061.30 × 176,372.88
  4. Step 4: Simplify right side
    319,608.70x = 77,791,251,737.54
  5. Step 5: Solve for x
    x = 77,791,251,737.54/319,608.70
  6. Step 6: Final answer
    x = 243,395.29

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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.