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Finding the Fourth Proportional to 407,326.08, 610,791.84 and 238,901.56

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Solution

The fourth proportional to 407,326.08, 610,791.84 and 238,901.56 is: 358,236.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,326.08 : 610,791.84 = 238,901.56 : x
  2. Step 2: Convert to fraction form
    407,326.08/610,791.84 = 238,901.56/x
  3. Step 3: Cross multiply
    407,326.08x = 610,791.84 × 238,901.56
  4. Step 4: Simplify right side
    407,326.08x = 145,919,123,411.27
  5. Step 5: Solve for x
    x = 145,919,123,411.27/407,326.08
  6. Step 6: Final answer
    x = 358,236.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.