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Finding the Fourth Proportional to 658,374.81, 908,557.26 and 356,568.81

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Solution

The fourth proportional to 658,374.81, 908,557.26 and 356,568.81 is: 492,064.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,374.81 : 908,557.26 = 356,568.81 : x
  2. Step 2: Convert to fraction form
    658,374.81/908,557.26 = 356,568.81/x
  3. Step 3: Cross multiply
    658,374.81x = 908,557.26 × 356,568.81
  4. Step 4: Simplify right side
    658,374.81x = 323,963,181,015.06
  5. Step 5: Solve for x
    x = 323,963,181,015.06/658,374.81
  6. Step 6: Final answer
    x = 492,064.97

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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.