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Finding the Fourth Proportional to 424,008.44, 585,167.56 and 288,343.36

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Solution

The fourth proportional to 424,008.44, 585,167.56 and 288,343.36 is: 397,938.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,008.44 : 585,167.56 = 288,343.36 : x
  2. Step 2: Convert to fraction form
    424,008.44/585,167.56 = 288,343.36/x
  3. Step 3: Cross multiply
    424,008.44x = 585,167.56 × 288,343.36
  4. Step 4: Simplify right side
    424,008.44x = 168,729,180,413.40
  5. Step 5: Solve for x
    x = 168,729,180,413.40/424,008.44
  6. Step 6: Final answer
    x = 397,938.26

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1.5x scale

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.