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Finding the Fourth Proportional to 501,687.15, 692,313.93 and 272,234.40

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Solution

The fourth proportional to 501,687.15, 692,313.93 and 272,234.40 is: 375,675.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,687.15 : 692,313.93 = 272,234.40 : x
  2. Step 2: Convert to fraction form
    501,687.15/692,313.93 = 272,234.40/x
  3. Step 3: Cross multiply
    501,687.15x = 692,313.93 × 272,234.40
  4. Step 4: Simplify right side
    501,687.15x = 188,471,667,345.19
  5. Step 5: Solve for x
    x = 188,471,667,345.19/501,687.15
  6. Step 6: Final answer
    x = 375,675.69

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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.