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Finding the Fourth Proportional to 493,270.67, 680,715.33 and 266,916.17

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Solution

The fourth proportional to 493,270.67, 680,715.33 and 266,916.17 is: 368,345.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,270.67 : 680,715.33 = 266,916.17 : x
  2. Step 2: Convert to fraction form
    493,270.67/680,715.33 = 266,916.17/x
  3. Step 3: Cross multiply
    493,270.67x = 680,715.33 × 266,916.17
  4. Step 4: Simplify right side
    493,270.67x = 181,693,928,743.89
  5. Step 5: Solve for x
    x = 181,693,928,743.89/493,270.67
  6. Step 6: Final answer
    x = 368,345.29

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1.5x scale

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.