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Finding the Fourth Proportional to 493,323, 680,790.66 and 266,973.36

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Solution

The fourth proportional to 493,323, 680,790.66 and 266,973.36 is: 368,425.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,323 : 680,790.66 = 266,973.36 : x
  2. Step 2: Convert to fraction form
    493,323/680,790.66 = 266,973.36/x
  3. Step 3: Cross multiply
    493,323x = 680,790.66 × 266,973.36
  4. Step 4: Simplify right side
    493,323x = 181,752,969,956.82
  5. Step 5: Solve for x
    x = 181,752,969,956.82/493,323
  6. Step 6: Final answer
    x = 368,425.90

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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.