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Finding the Fourth Proportional to 517,471.32, 713,874.42 and 374,004.12

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Solution

The fourth proportional to 517,471.32, 713,874.42 and 374,004.12 is: 515,955.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,471.32 : 713,874.42 = 374,004.12 : x
  2. Step 2: Convert to fraction form
    517,471.32/713,874.42 = 374,004.12/x
  3. Step 3: Cross multiply
    517,471.32x = 713,874.42 × 374,004.12
  4. Step 4: Simplify right side
    517,471.32x = 266,991,974,242.61
  5. Step 5: Solve for x
    x = 266,991,974,242.61/517,471.32
  6. Step 6: Final answer
    x = 515,955.11

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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.