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Finding the Fourth Proportional to 492,972.52, 680,302.06 and 266,618

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Solution

The fourth proportional to 492,972.52, 680,302.06 and 266,618 is: 367,932.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,972.52 : 680,302.06 = 266,618 : x
  2. Step 2: Convert to fraction form
    492,972.52/680,302.06 = 266,618/x
  3. Step 3: Cross multiply
    492,972.52x = 680,302.06 × 266,618
  4. Step 4: Simplify right side
    492,972.52x = 181,380,774,633.08
  5. Step 5: Solve for x
    x = 181,380,774,633.08/492,972.52
  6. Step 6: Final answer
    x = 367,932.83

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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.