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Finding the Fourth Proportional to 404,744.25, 607,145.81 and 155,426.25

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Solution

The fourth proportional to 404,744.25, 607,145.81 and 155,426.25 is: 233,150.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,744.25 : 607,145.81 = 155,426.25 : x
  2. Step 2: Convert to fraction form
    404,744.25/607,145.81 = 155,426.25/x
  3. Step 3: Cross multiply
    404,744.25x = 607,145.81 × 155,426.25
  4. Step 4: Simplify right side
    404,744.25x = 94,366,395,674.38
  5. Step 5: Solve for x
    x = 94,366,395,674.38/404,744.25
  6. Step 6: Final answer
    x = 233,150.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.