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Finding the Fourth Proportional to 404,681.28, 607,025.70 and 179,980.80

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Solution

The fourth proportional to 404,681.28, 607,025.70 and 179,980.80 is: 269,972.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,681.28 : 607,025.70 = 179,980.80 : x
  2. Step 2: Convert to fraction form
    404,681.28/607,025.70 = 179,980.80/x
  3. Step 3: Cross multiply
    404,681.28x = 607,025.70 × 179,980.80
  4. Step 4: Simplify right side
    404,681.28x = 109,252,971,106.56
  5. Step 5: Solve for x
    x = 109,252,971,106.56/404,681.28
  6. Step 6: Final answer
    x = 269,972.88

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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.