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Finding the Fourth Proportional to 517,475.32, 713,879.94 and 374,008.12

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Solution

The fourth proportional to 517,475.32, 713,879.94 and 374,008.12 is: 515,960.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,475.32 : 713,879.94 = 374,008.12 : x
  2. Step 2: Convert to fraction form
    517,475.32/713,879.94 = 374,008.12/x
  3. Step 3: Cross multiply
    517,475.32x = 713,879.94 × 374,008.12
  4. Step 4: Simplify right side
    517,475.32x = 266,996,894,265.11
  5. Step 5: Solve for x
    x = 266,996,894,265.11/517,475.32
  6. Step 6: Final answer
    x = 515,960.63

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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.