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Finding the Fourth Proportional to 454,972.81, 627,860.70 and 251,036.42

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Solution

The fourth proportional to 454,972.81, 627,860.70 and 251,036.42 is: 346,429.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,972.81 : 627,860.70 = 251,036.42 : x
  2. Step 2: Convert to fraction form
    454,972.81/627,860.70 = 251,036.42/x
  3. Step 3: Cross multiply
    454,972.81x = 627,860.70 × 251,036.42
  4. Step 4: Simplify right side
    454,972.81x = 157,615,902,386.69
  5. Step 5: Solve for x
    x = 157,615,902,386.69/454,972.81
  6. Step 6: Final answer
    x = 346,429.28

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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.