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Finding the Fourth Proportional to 552,647.75, 762,653.90 and 314,183.75

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Solution

The fourth proportional to 552,647.75, 762,653.90 and 314,183.75 is: 433,573.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,647.75 : 762,653.90 = 314,183.75 : x
  2. Step 2: Convert to fraction form
    552,647.75/762,653.90 = 314,183.75/x
  3. Step 3: Cross multiply
    552,647.75x = 762,653.90 × 314,183.75
  4. Step 4: Simplify right side
    552,647.75x = 239,613,462,254.13
  5. Step 5: Solve for x
    x = 239,613,462,254.13/552,647.75
  6. Step 6: Final answer
    x = 433,573.58

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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.