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Finding the Fourth Proportional to 493,272.68, 680,718.10 and 266,918.18

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Solution

The fourth proportional to 493,272.68, 680,718.10 and 266,918.18 is: 368,348.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,272.68 : 680,718.10 = 266,918.18 : x
  2. Step 2: Convert to fraction form
    493,272.68/680,718.10 = 266,918.18/x
  3. Step 3: Cross multiply
    493,272.68x = 680,718.10 × 266,918.18
  4. Step 4: Simplify right side
    493,272.68x = 181,696,036,345.06
  5. Step 5: Solve for x
    x = 181,696,036,345.06/493,272.68
  6. Step 6: Final answer
    x = 368,348.06

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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.