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Finding the Fourth Proportional to 457,968.30, 686,952.45 and 248,016.30

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Solution

The fourth proportional to 457,968.30, 686,952.45 and 248,016.30 is: 372,024.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,968.30 : 686,952.45 = 248,016.30 : x
  2. Step 2: Convert to fraction form
    457,968.30/686,952.45 = 248,016.30/x
  3. Step 3: Cross multiply
    457,968.30x = 686,952.45 × 248,016.30
  4. Step 4: Simplify right side
    457,968.30x = 170,375,404,924.94
  5. Step 5: Solve for x
    x = 170,375,404,924.94/457,968.30
  6. Step 6: Final answer
    x = 372,024.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.