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Finding the Fourth Proportional to 552,243.56, 762,080.88 and 310,519.93

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Solution

The fourth proportional to 552,243.56, 762,080.88 and 310,519.93 is: 428,508.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,243.56 : 762,080.88 = 310,519.93 : x
  2. Step 2: Convert to fraction form
    552,243.56/762,080.88 = 310,519.93/x
  3. Step 3: Cross multiply
    552,243.56x = 762,080.88 × 310,519.93
  4. Step 4: Simplify right side
    552,243.56x = 236,641,301,511.94
  5. Step 5: Solve for x
    x = 236,641,301,511.94/552,243.56
  6. Step 6: Final answer
    x = 428,508.94

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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.