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Finding the Fourth Proportional to 492,678.17, 679,896.06 and 266,323.67

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Solution

The fourth proportional to 492,678.17, 679,896.06 and 266,323.67 is: 367,526.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,678.17 : 679,896.06 = 266,323.67 : x
  2. Step 2: Convert to fraction form
    492,678.17/679,896.06 = 266,323.67/x
  3. Step 3: Cross multiply
    492,678.17x = 679,896.06 × 266,323.67
  4. Step 4: Simplify right side
    492,678.17x = 181,072,410,518.26
  5. Step 5: Solve for x
    x = 181,072,410,518.26/492,678.17
  6. Step 6: Final answer
    x = 367,526.76

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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.