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Finding the Fourth Proportional to 552,583.46, 762,157 and 380,556.06

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Solution

The fourth proportional to 552,583.46, 762,157 and 380,556.06 is: 524,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,583.46 : 762,157 = 380,556.06 : x
  2. Step 2: Convert to fraction form
    552,583.46/762,157 = 380,556.06/x
  3. Step 3: Cross multiply
    552,583.46x = 762,157 × 380,556.06
  4. Step 4: Simplify right side
    552,583.46x = 290,043,465,021.42
  5. Step 5: Solve for x
    x = 290,043,465,021.42/552,583.46
  6. Step 6: Final answer
    x = 524,886.26

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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.