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Finding the Fourth Proportional to 492,667.52, 679,881.44 and 266,313

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Solution

The fourth proportional to 492,667.52, 679,881.44 and 266,313 is: 367,512.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,667.52 : 679,881.44 = 266,313 : x
  2. Step 2: Convert to fraction form
    492,667.52/679,881.44 = 266,313/x
  3. Step 3: Cross multiply
    492,667.52x = 679,881.44 × 266,313
  4. Step 4: Simplify right side
    492,667.52x = 181,061,265,930.72
  5. Step 5: Solve for x
    x = 181,061,265,930.72/492,667.52
  6. Step 6: Final answer
    x = 367,512.08

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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.