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Finding the Fourth Proportional to 283,272.88, 390,791.64 and 175,627.12

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Solution

The fourth proportional to 283,272.88, 390,791.64 and 175,627.12 is: 242,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,272.88 : 390,791.64 = 175,627.12 : x
  2. Step 2: Convert to fraction form
    283,272.88/390,791.64 = 175,627.12/x
  3. Step 3: Cross multiply
    283,272.88x = 390,791.64 × 175,627.12
  4. Step 4: Simplify right side
    283,272.88x = 68,633,610,253.28
  5. Step 5: Solve for x
    x = 68,633,610,253.28/283,272.88
  6. Step 6: Final answer
    x = 242,287.97

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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.