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Finding the Fourth Proportional to 319,591.96, 441,039.44 and 176,357.16

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Solution

The fourth proportional to 319,591.96, 441,039.44 and 176,357.16 is: 243,374.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,591.96 : 441,039.44 = 176,357.16 : x
  2. Step 2: Convert to fraction form
    319,591.96/441,039.44 = 176,357.16/x
  3. Step 3: Cross multiply
    319,591.96x = 441,039.44 × 176,357.16
  4. Step 4: Simplify right side
    319,591.96x = 77,780,463,086.39
  5. Step 5: Solve for x
    x = 77,780,463,086.39/319,591.96
  6. Step 6: Final answer
    x = 243,374.28

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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.