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Finding the Fourth Proportional to 482,660.82, 666,089.82 and 291,637.26

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Solution

The fourth proportional to 482,660.82, 666,089.82 and 291,637.26 is: 402,470.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,660.82 : 666,089.82 = 291,637.26 : x
  2. Step 2: Convert to fraction form
    482,660.82/666,089.82 = 291,637.26/x
  3. Step 3: Cross multiply
    482,660.82x = 666,089.82 × 291,637.26
  4. Step 4: Simplify right side
    482,660.82x = 194,256,610,018.69
  5. Step 5: Solve for x
    x = 194,256,610,018.69/482,660.82
  6. Step 6: Final answer
    x = 402,470.23

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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.