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Finding the Fourth Proportional to 422,248.69, 582,707.29 and 252,482.81

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Solution

The fourth proportional to 422,248.69, 582,707.29 and 252,482.81 is: 348,428.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,248.69 : 582,707.29 = 252,482.81 : x
  2. Step 2: Convert to fraction form
    422,248.69/582,707.29 = 252,482.81/x
  3. Step 3: Cross multiply
    422,248.69x = 582,707.29 × 252,482.81
  4. Step 4: Simplify right side
    422,248.69x = 147,123,574,812.25
  5. Step 5: Solve for x
    x = 147,123,574,812.25/422,248.69
  6. Step 6: Final answer
    x = 348,428.73

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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.